%------------------------------------------------------------------------------
% File : CSI_E---1.1
% Problem : LCL119-1 : TPTP v9.3.1. Released v1.0.0.
% Transfm : none
% Format : tptp:raw
% Command : java -jar mcs_scs.jar %d %s
% Computer : n015.cluster.edu
% Model : x86_64 x86_64
% CPU : Intel(R) Xeon(R) CPU E5-2620 v4 2.10GHz
% Memory : 8046.5625MB
% OS : Linux 6.8.0-71-generic
% CPULimit : 300s
% WCLimit : 300s
% DateTime : Mon Sep 7 11:20:22 AM UTC 2026
% Result : Unsatisfiable 24.21s 3.95s
% Output : Assurance 0s
% Verified :
% SZS Type : -
% Comments :
%------------------------------------------------------------------------------
%----No solution output by system
%------------------------------------------------------------------------------
%----ORIGINAL SYSTEM OUTPUT
% 0.00/0.03 % Problem : LCL119-1 : TPTP v9.3.1. Released v1.0.0.
% 0.00/0.03 % Command : java -jar mcs_scs.jar %d %s
% 0.06/0.33 % Computer : n015.cluster.edu
% 0.06/0.33 % Model : x86_64 x86_64
% 0.06/0.33 % CPU : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
% 0.06/0.33 % Memory : 8046.5625MB
% 0.06/0.33 % OS : Linux 6.8.0-71-generic
% 0.06/0.33 % CPULimit : 300
% 0.06/0.33 % WCLimit : 300
% 0.06/0.33 % DateTime : Sat Sep 5 03:59:42 UTC 2026
% 0.06/0.33 % CPUTime :
% 0.13/0.41 start to proof:theBenchmark.p
% 24.21/3.95 % Version : CSI_E---1.1
% 24.21/3.95 % Problem : theBenchmark.p
% 24.21/3.95 % Proof found!
% 24.21/3.95 # SZS status Unsatisfiable
% 24.21/3.95 % SZS output start Proof
% 24.21/3.95 cnf(condensed_detachment, axiom, (is_a_theorem(X2)|~is_a_theorem(equivalent(X1,X2))|~is_a_theorem(X1)), file('/export/starexec/sandbox2/benchmark/theBenchmark.p', condensed_detachment)).
% 24.21/3.95 cnf(xgj, axiom, (is_a_theorem(equivalent(X1,equivalent(equivalent(X2,equivalent(X3,X1)),equivalent(X2,X3))))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p', xgj)).
% 24.21/3.95 cnf(prove_wo, negated_conjecture, (~is_a_theorem(equivalent(equivalent(a,equivalent(b,c)),equivalent(c,equivalent(b,a))))), file('/export/starexec/sandbox2/benchmark/theBenchmark.p', prove_wo)).
% 24.21/3.95 cnf(c_0_3, plain, (is_a_theorem(X2)|~is_a_theorem(equivalent(X1,X2))|~is_a_theorem(X1)), inference(fof_simplification,[status(thm)],[condensed_detachment])).
% 24.21/3.95 cnf(c_0_4, plain, (is_a_theorem(X2)|~is_a_theorem(equivalent(X1,X2))|~is_a_theorem(X1)), c_0_3).
% 24.21/3.95 cnf(c_0_5, axiom, (is_a_theorem(equivalent(X1,equivalent(equivalent(X2,equivalent(X3,X1)),equivalent(X2,X3))))), xgj).
% 24.21/3.95 cnf(c_0_6, plain, (is_a_theorem(equivalent(equivalent(X1,equivalent(X2,X3)),equivalent(X1,X2)))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_4, c_0_5])).
% 24.21/3.95 cnf(c_0_7, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(X1,equivalent(X2,X3)))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_4, c_0_6])).
% 24.21/3.95 cnf(c_0_8, plain, (is_a_theorem(equivalent(equivalent(X1,equivalent(X2,X3)),X1))|~is_a_theorem(X2)|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_7, c_0_6])).
% 24.21/3.95 cnf(c_0_9, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(X1,equivalent(X2,X3)))|~is_a_theorem(X2)|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_4, c_0_8])).
% 24.21/3.95 cnf(c_0_10, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(X2,equivalent(X3,X1)))|~is_a_theorem(equivalent(X2,X3))), inference(spm,[status(thm)],[c_0_9, c_0_5])).
% 24.21/3.95 cnf(c_0_11, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(X3,equivalent(X1,equivalent(X2,X3))))), inference(spm,[status(thm)],[c_0_10, c_0_5])).
% 24.21/3.95 cnf(c_0_12, plain, (is_a_theorem(equivalent(equivalent(X1,equivalent(X2,X2)),X1))), inference(spm,[status(thm)],[c_0_11, c_0_5])).
% 24.21/3.95 cnf(c_0_13, plain, (is_a_theorem(equivalent(X1,equivalent(X2,equivalent(X3,X1))))|~is_a_theorem(equivalent(X2,X3))), inference(spm,[status(thm)],[c_0_7, c_0_5])).
% 24.21/3.95 cnf(c_0_14, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(X1,equivalent(X2,X2)))), inference(spm,[status(thm)],[c_0_4, c_0_12])).
% 24.21/3.95 cnf(c_0_15, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(X3,X1))|~is_a_theorem(equivalent(X2,X3))), inference(spm,[status(thm)],[c_0_7, c_0_13])).
% 24.21/3.95 cnf(c_0_16, plain, (is_a_theorem(equivalent(equivalent(X1,X1),equivalent(X2,X2)))), inference(spm,[status(thm)],[c_0_14, c_0_12])).
% 24.21/3.95 cnf(c_0_17, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(X2,equivalent(X1,equivalent(X3,X3))))), inference(spm,[status(thm)],[c_0_15, c_0_12])).
% 24.21/3.95 cnf(c_0_18, plain, (is_a_theorem(equivalent(X1,X1))), inference(spm,[status(thm)],[c_0_14, c_0_16])).
% 24.21/3.95 cnf(c_0_19, plain, (is_a_theorem(equivalent(equivalent(X1,equivalent(X1,X2)),X2))), inference(spm,[status(thm)],[c_0_17, c_0_5])).
% 24.21/3.95 cnf(c_0_20, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(X2,X1))), inference(spm,[status(thm)],[c_0_15, c_0_18])).
% 24.21/3.95 cnf(c_0_21, plain, (is_a_theorem(equivalent(X1,equivalent(X2,X3)))|~is_a_theorem(equivalent(X1,X2))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_4, c_0_13])).
% 24.21/3.95 cnf(c_0_22, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(equivalent(X2,X2),X1))), inference(spm,[status(thm)],[c_0_10, c_0_16])).
% 24.21/3.95 cnf(c_0_23, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(equivalent(X2,equivalent(X2,equivalent(X3,X1))),X3))), inference(spm,[status(thm)],[c_0_10, c_0_19])).
% 24.21/3.95 cnf(c_0_24, plain, (is_a_theorem(equivalent(equivalent(X1,X2),X3))|~is_a_theorem(equivalent(X3,X1))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_20, c_0_21])).
% 24.21/3.95 cnf(c_0_25, plain, (is_a_theorem(equivalent(equivalent(X1,equivalent(X2,equivalent(X3,X3))),equivalent(X1,X2)))), inference(spm,[status(thm)],[c_0_22, c_0_5])).
% 24.21/3.95 cnf(c_0_26, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(X2,equivalent(X3,X1)))|~is_a_theorem(equivalent(X3,X2))), inference(spm,[status(thm)],[c_0_23, c_0_24])).
% 24.21/3.95 cnf(c_0_27, plain, (is_a_theorem(equivalent(equivalent(X1,X2),X3))|~is_a_theorem(equivalent(X3,equivalent(X1,equivalent(X2,equivalent(X4,X4)))))), inference(spm,[status(thm)],[c_0_15, c_0_25])).
% 24.21/3.95 cnf(c_0_28, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(X2,equivalent(X3,equivalent(X3,X1))))), inference(spm,[status(thm)],[c_0_15, c_0_19])).
% 24.21/3.95 cnf(c_0_29, plain, (is_a_theorem(equivalent(equivalent(X1,X2),X1))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_7, c_0_18])).
% 24.21/3.95 cnf(c_0_30, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(equivalent(X1,equivalent(X2,X3)),X3))), inference(spm,[status(thm)],[c_0_26, c_0_5])).
% 24.21/3.95 cnf(c_0_31, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,equivalent(equivalent(X2,X2),X3)),X1),X3))), inference(spm,[status(thm)],[c_0_27, c_0_5])).
% 24.21/3.95 cnf(c_0_32, plain, (is_a_theorem(equivalent(X1,equivalent(equivalent(X2,equivalent(X2,X1)),X3)))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_28, c_0_29])).
% 24.21/3.95 cnf(c_0_33, plain, (is_a_theorem(equivalent(X1,equivalent(X2,equivalent(X2,X1))))), inference(spm,[status(thm)],[c_0_20, c_0_19])).
% 24.21/3.95 cnf(c_0_34, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(X1,X2))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_14, c_0_21])).
% 24.21/3.95 cnf(c_0_35, plain, (is_a_theorem(equivalent(X1,equivalent(X2,equivalent(X2,equivalent(X3,equivalent(X3,X1))))))), inference(spm,[status(thm)],[c_0_28, c_0_19])).
% 24.21/3.95 cnf(c_0_36, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,X2),equivalent(equivalent(X3,X3),X2)),X1))), inference(spm,[status(thm)],[c_0_30, c_0_31])).
% 24.21/3.95 cnf(c_0_37, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(equivalent(X3,equivalent(X3,X2)),X1))), inference(spm,[status(thm)],[c_0_28, c_0_32])).
% 24.21/3.95 cnf(c_0_38, plain, (is_a_theorem(equivalent(equivalent(X1,equivalent(X1,X2)),X3))|~is_a_theorem(equivalent(X3,X2))), inference(spm,[status(thm)],[c_0_15, c_0_33])).
% 24.21/3.95 cnf(c_0_39, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(equivalent(X2,equivalent(X3,X1)),equivalent(X2,X3)))), inference(spm,[status(thm)],[c_0_34, c_0_5])).
% 24.21/3.95 cnf(c_0_40, plain, (is_a_theorem(equivalent(X1,equivalent(X2,equivalent(X2,X3))))|~is_a_theorem(equivalent(X3,X1))), inference(spm,[status(thm)],[c_0_10, c_0_35])).
% 24.21/3.95 cnf(c_0_41, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(equivalent(X1,X2),equivalent(equivalent(X3,X3),X2)))), inference(spm,[status(thm)],[c_0_4, c_0_36])).
% 24.21/3.95 cnf(c_0_42, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,equivalent(X2,equivalent(X3,equivalent(X3,X4)))),equivalent(X1,X2)),X4))), inference(spm,[status(thm)],[c_0_37, c_0_5])).
% 24.21/3.95 cnf(c_0_43, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(equivalent(equivalent(X2,X1),X3),X2))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_10, c_0_29])).
% 24.21/3.95 cnf(c_0_44, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,equivalent(X2,X3)),equivalent(X1,X2)),X3))), inference(spm,[status(thm)],[c_0_20, c_0_5])).
% 24.21/3.95 cnf(c_0_45, plain, (is_a_theorem(equivalent(X1,equivalent(X2,equivalent(X2,X3))))|~is_a_theorem(equivalent(X1,X3))), inference(spm,[status(thm)],[c_0_20, c_0_38])).
% 24.21/3.95 cnf(c_0_46, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(X2,equivalent(X3,equivalent(equivalent(X3,X2),X1))))), inference(spm,[status(thm)],[c_0_39, c_0_40])).
% 24.21/3.95 cnf(c_0_47, plain, (is_a_theorem(equivalent(X1,equivalent(X2,equivalent(X3,equivalent(X3,equivalent(equivalent(X4,X4),equivalent(X1,X2)))))))), inference(spm,[status(thm)],[c_0_41, c_0_42])).
% 24.21/3.95 cnf(c_0_48, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(equivalent(X2,X1),X3))|~is_a_theorem(equivalent(X2,X3))), inference(spm,[status(thm)],[c_0_43, c_0_38])).
% 24.21/3.95 cnf(c_0_49, plain, (is_a_theorem(equivalent(X1,equivalent(equivalent(X2,equivalent(X3,equivalent(X4,equivalent(X4,X1)))),equivalent(X2,X3))))), inference(spm,[status(thm)],[c_0_28, c_0_44])).
% 24.21/3.95 cnf(c_0_50, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(X2,X3))|~is_a_theorem(equivalent(X1,X3))), inference(spm,[status(thm)],[c_0_7, c_0_45])).
% 24.21/3.95 cnf(c_0_51, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(equivalent(X3,X3),equivalent(X2,X1))))), inference(spm,[status(thm)],[c_0_46, c_0_47])).
% 24.21/3.95 cnf(c_0_52, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(equivalent(X1,equivalent(equivalent(X2,X2),X3)),X3))), inference(spm,[status(thm)],[c_0_48, c_0_31])).
% 24.21/3.95 cnf(c_0_53, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,equivalent(equivalent(X2,X2),equivalent(X3,equivalent(X3,X4)))),X1),X4))), inference(spm,[status(thm)],[c_0_27, c_0_49])).
% 24.21/3.95 cnf(c_0_54, plain, (is_a_theorem(equivalent(X1,equivalent(X2,X3)))|~is_a_theorem(equivalent(X1,equivalent(equivalent(X4,X4),equivalent(X3,X2))))), inference(spm,[status(thm)],[c_0_50, c_0_51])).
% 24.21/3.95 cnf(c_0_55, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,X1),X2),equivalent(equivalent(X3,X3),equivalent(X4,equivalent(X4,X2)))))), inference(spm,[status(thm)],[c_0_52, c_0_53])).
% 24.21/3.95 cnf(c_0_56, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,X1),X2),equivalent(equivalent(X3,X2),X3)))), inference(spm,[status(thm)],[c_0_54, c_0_55])).
% 24.21/3.95 cnf(c_0_57, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,X2),X1),equivalent(equivalent(X3,X3),X2)))), inference(spm,[status(thm)],[c_0_20, c_0_56])).
% 24.21/3.95 cnf(c_0_58, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,equivalent(X2,X3)),X1),equivalent(X3,X2)))), inference(spm,[status(thm)],[c_0_54, c_0_57])).
% 24.21/3.95 cnf(c_0_59, plain, (is_a_theorem(equivalent(X1,equivalent(equivalent(X2,equivalent(equivalent(X3,X1),X3)),X2)))), inference(spm,[status(thm)],[c_0_28, c_0_58])).
% 24.21/3.95 cnf(c_0_60, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,X2),equivalent(equivalent(X3,X2),X3)),X1))), inference(spm,[status(thm)],[c_0_11, c_0_59])).
% 24.21/3.95 cnf(c_0_61, plain, (is_a_theorem(equivalent(X1,equivalent(equivalent(equivalent(X2,equivalent(X2,X1)),X3),equivalent(equivalent(X4,X3),X4))))), inference(spm,[status(thm)],[c_0_28, c_0_60])).
% 24.21/3.95 cnf(c_0_62, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(X2,equivalent(X2,X1)))), inference(spm,[status(thm)],[c_0_4, c_0_19])).
% 24.21/3.95 cnf(c_0_63, plain, (is_a_theorem(equivalent(X1,equivalent(equivalent(X2,X2),X3)))|~is_a_theorem(equivalent(X1,equivalent(equivalent(X4,X3),X4)))), inference(spm,[status(thm)],[c_0_50, c_0_56])).
% 24.21/3.95 cnf(c_0_64, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,equivalent(X1,X2)),X3),equivalent(X2,X3)))), inference(spm,[status(thm)],[c_0_11, c_0_61])).
% 24.21/3.95 cnf(c_0_65, plain, (is_a_theorem(X1)|~is_a_theorem(equivalent(equivalent(equivalent(X2,equivalent(X2,X3)),X1),X3))), inference(spm,[status(thm)],[c_0_62, c_0_38])).
% 24.21/3.95 cnf(c_0_66, plain, (is_a_theorem(equivalent(equivalent(X1,equivalent(X1,equivalent(X2,X3))),X2))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_7, c_0_19])).
% 24.21/3.95 cnf(c_0_67, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,equivalent(X1,equivalent(X2,X3))),X2),equivalent(equivalent(X4,X4),X3)))), inference(spm,[status(thm)],[c_0_63, c_0_64])).
% 24.21/3.95 cnf(c_0_68, plain, (is_a_theorem(equivalent(equivalent(X1,equivalent(X1,X2)),equivalent(X2,X3)))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_65, c_0_66])).
% 24.21/3.95 cnf(c_0_69, plain, (is_a_theorem(equivalent(X1,equivalent(equivalent(X2,X2),X3)))|~is_a_theorem(equivalent(equivalent(equivalent(X4,X1),X3),X4))), inference(spm,[status(thm)],[c_0_63, c_0_13])).
% 24.21/3.95 cnf(c_0_70, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,equivalent(X1,equivalent(X2,equivalent(X3,X4)))),X2),equivalent(X4,X3)))), inference(spm,[status(thm)],[c_0_54, c_0_67])).
% 24.21/3.95 cnf(c_0_71, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(X3,equivalent(X3,X1))))|~is_a_theorem(X2)), inference(spm,[status(thm)],[c_0_20, c_0_68])).
% 24.21/3.95 cnf(c_0_72, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,X2),equivalent(X3,equivalent(X2,X1))),equivalent(equivalent(X4,X4),X3)))), inference(spm,[status(thm)],[c_0_69, c_0_70])).
% 24.21/3.95 cnf(c_0_73, plain, (is_a_theorem(equivalent(X1,X2))|~is_a_theorem(equivalent(equivalent(X2,X3),X1))|~is_a_theorem(X3)), inference(spm,[status(thm)],[c_0_10, c_0_71])).
% 24.21/3.95 cnf(c_0_74, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,X2),equivalent(equivalent(X3,X4),equivalent(X2,X1))),equivalent(X4,X3)))), inference(spm,[status(thm)],[c_0_54, c_0_72])).
% 24.21/3.95 cnf(c_0_75, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(X3,X4)))|~is_a_theorem(equivalent(equivalent(X2,X1),equivalent(X4,X3)))), inference(spm,[status(thm)],[c_0_73, c_0_74])).
% 24.21/3.95 cnf(c_0_76, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(equivalent(X3,X4),equivalent(X3,equivalent(X4,equivalent(X2,X1))))))), inference(spm,[status(thm)],[c_0_75, c_0_5])).
% 24.21/3.95 cnf(c_0_77, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(X3,X4)))|~is_a_theorem(equivalent(X3,equivalent(X4,equivalent(X2,X1))))), inference(spm,[status(thm)],[c_0_7, c_0_76])).
% 24.21/3.95 cnf(c_0_78, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(X3,equivalent(X2,equivalent(X1,X3)))))), inference(spm,[status(thm)],[c_0_77, c_0_5])).
% 24.21/3.95 cnf(c_0_79, negated_conjecture, (~is_a_theorem(equivalent(equivalent(a,equivalent(b,c)),equivalent(c,equivalent(b,a))))), inference(fof_simplification,[status(thm)],[prove_wo])).
% 24.21/3.95 cnf(c_0_80, plain, (is_a_theorem(equivalent(equivalent(X1,X2),equivalent(X3,X4)))|~is_a_theorem(equivalent(equivalent(X4,X3),equivalent(X2,X1)))), inference(spm,[status(thm)],[c_0_48, c_0_74])).
% 24.21/3.95 cnf(c_0_81, plain, (is_a_theorem(equivalent(equivalent(equivalent(X1,X2),X3),equivalent(equivalent(X1,X3),X2)))), inference(spm,[status(thm)],[c_0_77, c_0_78])).
% 24.21/3.95 cnf(c_0_82, negated_conjecture, (~is_a_theorem(equivalent(equivalent(a,equivalent(b,c)),equivalent(c,equivalent(b,a))))), c_0_79).
% 24.21/3.95 cnf(c_0_83, plain, (is_a_theorem(equivalent(equivalent(X1,equivalent(X2,X3)),equivalent(X3,equivalent(X2,X1))))), inference(spm,[status(thm)],[c_0_80, c_0_81])).
% 24.21/3.95 cnf(c_0_84, negated_conjecture, ($false), inference(cn,[status(thm)],[inference(rw,[status(thm)],[c_0_82, c_0_83])]), ['proof']).
% 24.21/3.95 % SZS output end Proof
% 24.21/3.95 % User time : 3.174 s
% 24.21/3.95 % System time : 0.127 s
% 24.21/3.95 % Total time : 3.301 s
% 24.21/3.95 % User time : 3.176 s
% 24.21/3.95 % System time : 0.130 s
% 24.21/3.95 % Total time : 3.306 s
% 24.21/3.95
%------------------------------------------------------------------------------