import sys from collections import deque, Counter input = lambda: sys.stdin.readline().rstrip() ii = lambda: int(input()) mi = lambda: map(int, input().split()) li = lambda: list(mi()) inf = 2 ** 63 - 1 mod = 998244353 import random m = ii() if m == 0: print('iamtourist') exit() a = [] cnt = 0 for i in range(20000): cnt += i a.append(cnt) x = [] for i in range(19999, 0, -1): if m - a[i] >= 0: x.append(i) m -= a[i] ans = [] for i in range(1, 20001): ans.append('c') ans.append('o') if i in x: ans.append('n') print(''.join(ans))