%%MatrixMarket matrix coordinate real symmetric
% {2, 1, 1, 3, 2},
% {1, 2, 2, 1, 1},
% {1, 2, 9, 1, 5},
% {3, 1, 1, 7, 1},
% {2, 1, 5, 1, 8},
5 5 15
1 1 2.0
2 2 2.0
3 3 9.0
4 4 7.0
5 5 8.0
2 1 1.0
3 1 1.0
4 1 3.0
5 1 2.0
3 2 2.0
4 2 1.0
5 2 1.0
4 3 1.0
5 3 5.0
5 4 1.0