1280: 【基础】求2的n次方

Memory Limit:64 MB Time Limit:1.000 S
Creator:
Submit:11 Solved:4

Description

求2的n次方!(0<=n<=100)

Input

从键盘读入一个整数n!

Output

请输出2的n次方!

Sample Input

100

Sample Output

1267650600228229401496703205376