m=7;
n=4;
order=[4,3,3,2,1,4,4,2,1,3,4,3,1,2,1,1,3,3,2,2,4,1,2,2,1,4,3,4];
machine=[|1,2,3,4,5,6,7|
2,3,4,5,7,1,6|
1,2,3,4,7,6,5|
4,5,6,7,1,2,3|];
time=[|3,4,5,6,2,8,1|
4,4,6,5,9,2,1|
3,4,2,5,6,8,3|
8,4,7,3,6,5,9|];