#pragma GCC target("avx") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include using namespace std; int main() { cin.tie(0); ios::sync_with_stdio(false); long long M; cin >> M; auto rep = [](char c, long long t) -> void { for( int i = 1; i <= t; i++ ) { cout << c; } }; if( M <= 59998 ) { rep('c', 1); rep('o', 1); rep('n', M); }else { long long m = (long long)pow(M, 0.25); for( int t = 0; t < 10000; t++, m++ ) { for( long long c = 0; c <= 300; c++ ) { for( long long o = c; o <= 300; o++ ) { if( (M-(m*m*m))%(m*m+m*o+c*o) == 0 ) { long long n = (M-(m*m*m))/(m*m+m*o+c*o); rep('c', m); rep('o', m); rep('n', m); rep('c', c); rep('o', o); rep('n', n); return 0; } } } } } }