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

int main() {
    int K;
    cin >> K;

    vector<string> decompressed = {
        "NUPC",                            // 1111
        "NNUPC",                           // 2111
        "NUNUPC",                          // 1211
        "NNUNNUPC",                        // 2211
        "NUPNUPC",                         // 1121
        "NNUPNNUPC",                       // 2121
        "NUNUPNUNUPC",                     // 1221
        "NNUNNUPNNUNNUPC",                 // 2221
        "NUPCNUPC",                        // 1112
        "NNUPCNNUPC",                      // 2112
        "NUNUPCNUNUPC",                    // 1212
        "NNUNNUPCNNUNNUPC",                // 2212
        "NUPNUPCNUPNUPC",                  // 1122
        "NNUPNNUPCNNUPNNUPC",              // 2122
        "NUNUPNUNUPCNUNUPNUNUPC",          // 1222
        "NNUNNUPNNUNNUPCNNUNNUPNNUNNUPC",  // 2222
    };

    sort(decompressed.begin(), decompressed.end());

    cout << decompressed[K - 1] << endl;
}