#include <bits/stdc++.h> int main() { std::ios::sync_with_stdio(false); std::cin.tie(nullptr); int N; std::string S; std::cin >> N >> S; if (N % 2) { std::cout << "No\n"; } else { std::cout << "Yes\n"; for (int i = 0; i < N; i += 2) { std::cout << S[i] << (i + 2 == N ? " " : ""); } for (int i = 1; i < N; i += 2) { std::cout << S[i] << (i + 1 == N ? "\n" : ""); } } }