#include <vector>
#include <iostream>
#include <string>
#include <ostream>
#include <map>
#include <set>
#include <bitset>
#include <cmath>
#include <iomanip>
#include <algorithm>
#include <list>
#include <regex>
#define rep(i, n) for (int i = 0; i < (n); i++)
#define reps(i, n) for (int i = 1; i < (n); i++)
using namespace std;

int main()
{
    int n;
    string s;
    cin >> n >> s;
    vector<int> cnt(26);
    rep(i, n)
    {
        cnt[s[i] - 'A']++;
        
    }
    rep(i, 26)cout << cnt[i];
}