#include<bits/stdc++.h>
using namespace std;
int main()
{
    int x; cin>>x;
    if(x==0) {cout<<0<<endl; return 0;}
    x = x%10;
    if(x==0) cout<<1<<endl;
    else if(x==1 || x==3 || x==7 || x==9) cout<<10<<endl;
    else if(x==2 || x==4 || x==6 || x==8) cout<<5<<endl;
    else cout<<2<<endl;
}