5 9
4 9 3 7
8 1 2 4 3
9 8 7 1
8 4
6 4 2 7
3 6 7 5 2
6 2 1 4
2 5
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5 3 1 7 8 6 4 2 9
4 2 6 9 5 3 1 8 7
9 7 8 1 2 4 3 5 6
3 9 4 8 6 7 5 1 2
7 8 2 5 1 9 6 4 3
1 6 5 4 3 2 9 7 8
8 4 3 6 7 5 2 9 1
6 5 7 2 9 1 8 3 4
2 1 9 3 4 8 7 6 5
3=>(1,2) | 4=>(1,7) | 7=>(1,4) | 3=>(4,1) | 8=>(7,1) | 7=>(3,2) | 9=>(3,1) | 5=>(8,2) |

5=>(2,5) | 5=>(3,8) | 6=>(3,9) | 4=>(4,3) | 5=>(5,4) | 3=>(9,4) | 4=>(9,5) | 4=>(7,2) |

1=>(7,9) | 1=>(1,3) | 1=>(6,1) | 7=>(5,1) | 6=>(2,3) | 2=>(2,2) | 1=>(9,2) | 5=>(6,3) |

1=>(2,7) | 2=>(4,9) | 5=>(4,7) | 6=>(4,5) | 2=>(5,3) | 9=>(7,8) | 3=>(8,8) | 6=>(9,8) |

8=>(6,9) | 2=>(1,8) | 8=>(1,5) | 6=>(1,6) | 8=>(2,8) | 1=>(5,5) | 6=>(5,7) | 9=>(5,6) |

3=>(5,9) | 3=>(6,5) | 9=>(6,7) | 9=>(8,5) | 8=>(9,6) | 8=>(8,7) | 9=>(9,3) | 7=>(8,3) |

7=>(9,7) |