product-codes/html/trial410-323232_gbx_012_8mm_source.html

%%MatrixMarket matrix coordinate real general

3 9 12

1 3          1

1 4          1

1 6          1

1 7          1

2 1          1

2 3          1

2 4          1

2 8          1

3 2          1

3 4          1

3 7          1

3 8          1