10
 0:  5  1  3  8  2  4  9  6  7  0
 1:  5  3  6  7  0  9  2  8  4  1
 2:  3  6  8  9  1  7  0  4  5  2
 3:  6  4  0  2  9  8  7  5  1  3
 4:  9  7  0  2  1  5  3  6  8  4
 5:  7  9  0  6  3  4  8  2  1  5
 6:  2  8  1  4  7  3  0  9  5  6
 7:  3  8  0  5  2  6  9  1  4  7
 8:  5  4  9  7  3  1  0  6  2  8
 9:  2  3  7  5  8  4  6  0  1  9