1%%MatrixMarket matrix coordinate integer general 2% 3% This is a test sparse matrix in Matrix Market Exchange Format. 4% see https://math.nist.gov/MatrixMarket 5% 64 256 17 71 1 -1 81 127 2 91 128 -3 101 255 4 112 2 -5 122 254 6 133 3 -7 144 1 8 154 2 -9 164 4 10 174 99 -11 184 127 12 194 128 -13 204 129 14 214 250 -15 224 254 16 234 256 -17 24