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2575. Mysterious numbers - 1

time limit per test
2 seconds
memory limit per test
256 megabytes
input
standard input
output
standard output
Input

The input contains two integers a1,a2 (0≤ai≤109), separated by a single space.

Output

Output a single integer.

Examples
Input
3 14
Output
44
Input
27 12
Output
48
Input
100 200
Output
102

难度等级： 1
总通过次数： 0
总提交次数： 1
  • *special，constructive algorithms