This is my sample input file for gauss
7 10

        2   1   3   4   5   6  10   8   9   7

1       1   2   3   4   5   6   7   8   9  10
5       2   3   4   5   6   7   8   9  10   1
3       3   4   5   6   7   8   9  10   1   2
4       4   5   6   7   8   9  10   1   2   3
2       5   6   7   8   9  10   1   2   3   4
7       6   7   8   9  10   1   2   3   4   5
6       7   8   9  10   1   2   3   4   5   8

You may write wahtever you want here.
Note the labels of columns on row 4.
Each row begins with a row label.
