#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  vector<string> s;
  rep(i, 2) rep(j, 2) rep(k, 2) rep(l, 2) {
    string t = "N";
    t += to_string(i);
    t += 'U';
    t += to_string(j);
    t += 'P';
    t += to_string(k);
    t += 'C';
    t += to_string(l);
    s.push_back(t);
  }
  vector<string> ans;
  for (auto x : s) {
    string t = "";
    for (char c : x) {
      if (isdigit(c)) {
        if (c == '1') t = t + t;
      }
      else {
        t += c;
      }
    }
    ans.push_back(t);
  }
  sort(ans.begin(), ans.end());

  int k;
  cin >> k;
  cout << ans[k - 1] << endl;
  return 0;
}