Pari

m = [0,1,1,0,0,0,0,0,0,0; \
     1,0,0,1,0,0,0,0,0,0; \
     0,0,0,0,1,1,0,0,0,0; \
     0,0,0,0,0,0,1,0,0,1; \
     1,0,0,0,0,0,0,0,0,0; \
     0,0,0,0,0,0,0,1,0,0; \
     0,0,0,0,0,0,0,0,1,0; \
     0,1,1,0,0,0,0,0,0,0; \
     1,0,0,1,0,0,0,0,0,0; \
     1,0,0,0,0,0,0,0,0,0 ]