输入
```latex
30 50
28 29
4 21
24 30
17 30
5 30
18 29
1 3
15 28
13 18
16 24
10 24
2 29
14 29
6 10
15 26
8 27
1 22
9 18
3 11
1 21
14 26
3 16
2 25
29 30
18 24
5 28
4 15
11 26
7 13
13 19
6 17
7 29
14 21
5 19
1 27
7 23
7 18
2 24
28 30
10 23
20 23
15 21
10 13
7 26
7 17
23 27
5 12
3 28
11 28
6 11
```
应当输出
```latex
114
114
58
58
114
58
58
58
58
58
58
58
58
58
58
58
58
114
58
58
58
58
114
58
58
58
114
58
58
58
```
by AntiO2 @ 2019-11-04 15:11:19
巨佬这题教教我
by —诸葛孔明— @ 2019-11-04 15:11:41
@[—诸葛孔明—](/space/show?uid=213203) 我狂WA
by AntiO2 @ 2019-11-04 15:45:45