Hard puzzle

(gnu92qjf)

2
3
1
1
2
2
1
4
4
3
1
3
1
1
2
1
1
1
4
1
2
1
1
1
1
3
1
5
1
1
3
3
2
1
1
2
1
3
1
2
1
4
1
1
1
1
1
2
2
2
5
3
3
1
1
1
3