cf/mirror

Собери число

CF
648E2300· international master⌨ stdin/stdout
#graphs#shortest paths

Examples

Sample 1of 4
Input
2 3
123 1
Output
YES
123
Sample 2of 4
Input
1 10
1
Output
NO
Sample 3of 4
Input
3 4
1 2 3
Output
YES
12
Sample 4of 4
Input
3 777
12 23 345
Output
YES
121212
648E.cpp
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Ln 11·137 BGNU C++20 (64)
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