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

int main() {
  int n; cin >> n;
  string s; cin >> s;
  if (n % 2 == 0) {
    string p = "", q = "";
    for (int i = 0; i < n; i += 2) {
      p += s[i];
      q += s[i+1];
    }
    cout << "Yes" << endl;
    cout << p << " " << q << endl;
  } else {
    cout << "No" << endl;
  }
  return 0;
}