Problem C: n!
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
Creator:
Submit:64
Solved:23
Description
输入一个整数n(1<n<1000),输出n!的精确值,n!=1*2*3*4*...*n。
Input
一个整数n
Output
n的阶乘值
Sample Input Copy
3
Sample Output Copy
6