2486 wo shi yi dao pingyin ti
Time Limit : 2000/1000 MS(Java/Others) | Memory Limit : 65536/32768 KB(Java/Others)
Submits : 144 | Solved : 47
Description
ufde zfeafe esp dfx zq lww esp yfxmpc tyafe ,ufde slgl qfy.
Input
1 1
Output
2
Sample Input
1 2
Sample Output
3
HINT
Source
NBU OJ
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