#28992
4
4
#28991
3 2
#28990
4 4
#28989
4 4
#28988
5 4#28987
1
1 1
6
#28986
3 5 310
#28985
6 7
#28984
5 4
#28982
8 8
#28981
2 1
#28980
3 3
#28978
6 5
#28977
3 2