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Degree of two
English
Execution time limit is 1 second
Runtime memory usage limit is 128 megabytes
Print the number
2^n
using bit operations only.
Input
One number
n
(
0
≤
n
≤
30
).
Output
Print the number
2^n
using bit operations only.
Examples
Input #1
Answer #1
Input #2
Answer #2