请升级 HydroOJ 到 4.19.0 以上版本以正常使用此插件功能。
#P64A. Factorial
Factorial
Description
Print the factorial of the given integer number n. The factorial of n is equal to 1·2·...·n.
The only line contains n (1 ≤ n ≤ 10).
Print the factorial of n.
Input
The only line contains n (1 ≤ n ≤ 10).
Output
Print the factorial of n.
3
5
6
120