20
16
1 1 1 1 1 1 1 1 1 1 4 4 4 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 4 4 4 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 4 1 1 1
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3
1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 4 4 3
1 1 2 1 2 1 1 2 1 2 4 4 2 1 1 1 1 1 4 3
1 1 2 1 2 1 1 2 1 2 4 4 4 2 1 1 1 1 4 3
1 1 2 1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1
1 1 2 1 2 1 1 2 1 2 1 1 1 1 1 2 1 1 1 1
1 1 2 1 2 1 1 2 1 2 1 1 2 1 1 1 2 1 1 1
1 1 2 1 2 1 1 2 1 1 1 1 2 1 1 1 1 2 1 1
1 1 1 1 1 1 1 2 2 2 1 1 2 1 1 1 1 1 1 1

