#include <bits/stdc++.h>
using namespace std;

#define rep(i, n) for (int i = 0; i < (int)n; i++)

int main() {
  int N;
  cin >> N;
  string S;
  cin >> S;
  vector<int> a(26, 0);
  rep(i, N) {
    int n = S[i] - 'A';
    a[n]++;
  }
  rep(i, 26)
    cout << a[i];
  cout << endl;
  return 0;
}