%%MatrixMarket matrix coordinate integer general 12 5 18 1 2 2 1 4 2 1 5 2 2 2 1 2 4 1 2 5 1 3 2 2 3 4 2 3 5 2 4 2 1 4 4 1 4 5 1 5 2 2 5 4 2 5 5 2 6 2 1 6 4 1 6 5 1