#D10644. QR code
QR code
QR code
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
inputFormat
Input
The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.
outputFormat
Output
Output a single integer.
Examples
Input
1 1
Output
0
Input
3 7
Output
0
Input
13 10
Output
1
样例
13 10
1