Problems
2^k + 2^n
2^k + 2^n
Two different integers k and n are given. Print the value 2^k
+ 2^n
, using bit operations only.
Input data
Two different integers k and n (0 ≤ k, n ≤ 30).
Output data
Print the number 2^k
+ 2^n
.
Examples
Input example #1
0 1
Output example #1
3