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

const long long inf = 2e18;
const long long prime = 998244353;

void YNcout(bool condition) {
    if (condition) cout << "Yes" << endl;
    else cout << "No" << endl;
}

int main() { //メイン関数
    int n;
    string S;
    cin >> n >> S;
    YNcout(n % 2 == 0);
    if (n % 2 == 0) {
        for (int i = 0; i < n / 2; i++) {
            cout << S[2 * i];
        }
        cout << " ";
        for (int i = 0; i < n / 2; i++) {
            cout << S[2 * i + 1];
        }
        cout << endl;
    }
}