#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using mint = modint998244353;
const ll INF=9e18;

int main() {
    ll N;
    cin>>N;
    string S;
    cin>>S;
    vector<ll> hai (26);
    for (ll a = 0; a < N; a++){
        ll nya=S[a]-'A';
        hai[nya]++;
    }
    for (ll a = 0; a < 26; a++){
        cout<<hai[a];
    }
    
    
}