1 4 4
× 1 4
---------------
5 7 6
1 4 4
---------------
2 0 1 6
1 7 5
× 3 6
---------------
1 0 5 0
5 2 5
---------------
6 3 0 0
1 4 4
× 1 4
---------------
5 7 6
1 4 4
---------------
2 0 1 6
1 7 5
× 3 6
---------------
1 0 5 0
5 2 5
---------------
6 3 0 0