cf/mirror

Cheaterius's Problem

CF
51A1300· pupil2s256 MB⌨ stdin/stdout
#implementation

Examples

Sample 1of 2
Input
4
31
23
**
31
23
**
13
32
**
32
13
Output
1
Sample 2of 2
Input
4
51
26
**
54
35
**
25
61
**
45
53
Output
2
51A.cpp
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Ln 11·137 BGNU C++20 (64)