제출 #189301

4 1
3 2
10 9
10 7
5 3
3 4
8 7
4 5
7 9
9 10
2 1
9 8
0 0

Case 1: A forest of 3 trees.
Case 2: There is one tree.

Case 1: A forest of 3 trees.
Case 2: A forest of 2 trees.

1 0
6 6
3 4
6 5
5 4
4 6
6 3
2 1
4 5
4 1
3 1
4 3
2 4
1 2
0 0

Case 1: There is one tree.
Case 2: No trees.
Case 3: No trees.

Case 1: There is one tree.
Case 2: There is one tree.
Case 3: No trees.

2 1
1 2
7 3
4 3
2 1
6 5
8 7
8 4
3 6
5 4
6 4
8 5
8 7
7 5
10 4
2 4
10 9
7 6
4 3
0 0

Case 1: There is one tree.
Case 2: A forest of 4 trees.
Case 3: There is one tree.
Case 4: A forest of 6 trees.

Case 1: There is one tree.
Case 2: A forest of 4 trees.
Case 3: A forest of 2 trees.
Case 4: A forest of 6 trees.