CodeForces

代码：

//CodeForces - 822A I'm bored with life#include<bits/stdc++.h>using namespace std;int main(){    int m,n;    scanf("%d%d",&n,&m);    if(n>m)    {        int t=n;        n=m;        m=t;    }    long long int ans=1;    for(int i=1;i<=n;i++)    {        ans*=(long long int)i;    }    printf("%lld",ans);}