Problem3503--QR code

3503: QR code

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Time Limit : 2.000 sec  Memory Limit : 256 MiB

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Description

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≤32), separated by a single space.

Output

Output a single integer.

Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1

Source/Category

 
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