Problem D: 求n!的值

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:8 Solved:4

Description

用高精度方法,求n!的精确值

Input

n是一个正整数(n<=345)

Output

n!的最终结果

Sample Input Copy

10

Sample Output Copy

3628800

Source/Category