#include <iostream>
#include <fstream>

using namespace std;
ifstream fin("fact.in");
ofstream fout("fact.out");
int main()
{
    int a,b,s1=0,s2=0,i,n,s=0,j,m;
    fin>>a>>b;
    for(i=1;i<=n;i++)
    {
        s1=s*i;
    }
    for(j=1;j<=m;j++)
    {
        s2=s2*j;
    }
    fout<<s1+s2;
    return 0;
}