sample of input to simplex
6 11
           1      2     3    4   5  6 7 8 9 10            11

1          1      0     0    0   0  1 0 0 0  0             1
2         20      1     0    0   0  0 1 0 0  0           100
3        200     20     1    0   0  0 0 1 0  0         10000
4       2000    200    20    1   0  0 0 0 1  0       1000000
5      20000   2000   200   20   1  0 0 0 0  1     100000000
6      10000   1000   100   10   1  0 0 0 0  0             0

Yo may write any comments you wish here.
Note the column numbers on line 3.
Note row numbers on lines 5 and following. 
