1#	i	iter	j	itact	n
26 7
3   1   -1    0    0    0    1   -2
4   1    1    0   -1    0    0   -3
5   1    0   -1    0    1    0    0
6   1    0    1    0    0    0   -1
7   1    0    0    1    0    0   -4
8   1    0    0    0    0    0    1
9
101 4
11   1    0    0    1
12