# Boe and Cheng(1991)
# m = 20 p = 35
# Instance format:
# machines_number parts_number
# machine1 part_to_be_processed_1 part_to_be_processed_2 ...
# machine2 part_to_be_processed_1 part_to_be_processed_2 ...
# ...

20 35
1 1 6 11 14 15 18 20 23 24 25 30 32 34 35
2 2 10 12 13 18 19 24 27 31
3 1 3 5 15 29 31
4 2 7 12 13 24 27
5 5 14 17 23 26
6 8 14 19 22 25 30
7 1 3 5 7 12 15 17 19 20 22 23 24 26 29 30 31 32
8 1 5 9 15 17 20 23 35
9 8 14 19 23 32 35
10 8 14 16 19 22 26
11 4 6 9 16 24 28 30 32 35
12 4 6 9 11 21 33
13 2 12 13 24
14 2 7 10 12 13 18 24 27 31
15 4 6 9 11 21 28 30
16 4 6 9 12 18 26 30 32
17 1 3 5 15 17 20 25 35
18 2 7 12 13 20 24 31
19 4 9 11 21 28 30 32
20 8 14 19 23 26