题目描述
Problem Statement
Given N, print 2^N.
Input
Input is given from Standard Input in the following format:
N
Output
Print the answer.
Constraints
- $0 \leq N \leq 30$
- N is an integer.
Sample Input 1
3
Sample Output 1
8
We have 2^3=8.
Sample Input 2
30
Sample Output 2
1073741824
输入格式
见题面 Input 部分
输出格式
见题面 Output 部分
样例输入
3
样例输出
8