#include <bits/stdc++.h>
using namespace std;
string s;
int main() 
{
    int n,i,j,k,la=1,m,sm=1,sp=1,num=1;
    cin>>n>>s;
    k=s.size();
    for(i=0;i<k;i++)
    {
        if(s[i]<='z'&&s[i]>='a')
            sm=0;
        else if(s[i]<='Z'&&s[i]>='A')
            la=0;
        else if(s[i]<='9'&&s[i]>='0')
            num=0;
        else
            sp=0;
    }
    j=sm+la+sp+num+n;
    if(j<6)
        cout<<6-n;
    else
        cout<<j-n;
    return 0;
}