#include<bits/stdc++.h>

using namespace std;

const int N=1e5+5,
        INF=1e9+7;

int n, ans;
string s;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    cin>>n;
    cin>>s;
    bool flag=false;
    for (int i=0; i<s.size(); ++i){
        if (s[i]>='0'&&s[i]<='9') flag=true;
    }
    if (!flag) s+='9', ans++;
    flag=false;
    for (int i=0; i<s.size(); ++i){
        if (s[i]>='a'&&s[i]<='z') flag=true;
    }
    if (!flag) s+="a", ans++;
    flag=false;
    for (int i=0; i<s.size(); ++i){
        if (s[i]>='A'&&s[i]<='Z') flag=true;
    }
    if (!flag) s+="A", ans++;
    flag=false;
    for (int i=0; i<s.size(); ++i){
        if (s[i]=='!'||s[i]=='@'||s[i]=='#'||s[i]=='$'||s[i]=='%'||s[i]=='^'||s[i]=='&'||s[i]=='*'||s[i]=='('||s[i]==')'||s[i]=='-'||s[i]=='+') flag=true;
    }
    if (!flag) s+="A", ans++;
    while(s.size()<6) s+='a', ans++;
    cout<<ans;
}