S1_1 = auread('S1_1.out');
S1_2 = auread('S1_2.out');
S1_3 = auread('S1_3.out');
S2_1 = auread('S2_1.out');
S2_2 = auread('S2_2.out');
S2_3 = auread('S2_3.out');
S3_1 = auread('S3_1.out');
S3_2 = auread('S3_2.out');
S3_3 = auread('S3_3.out');
S4_1 = auread('S4_1.out');
S4_2 = auread('S4_2.out');
S4_3 = auread('S4_3.out');
S5_1 = auread('S5_1.out');
S5_2 = auread('S5_2.out');
S5_3 = auread('S5_3.out');