import sys, math; sys.setrecursionlimit(10**8); sys.set_int_max_str_digits(0) inf = 1<<60; MOD = 998244353 from bisect import bisect_left, bisect_right from collections import deque, defaultdict, Counter from itertools import product, combinations, permutations, groupby, accumulate from heapq import heapify, heappop, heappush def I(): return sys.stdin.readline().rstrip() def II(): return int(sys.stdin.readline().rstrip()) def IS(): return sys.stdin.readline().rstrip().split() def MII(): return map(int, sys.stdin.readline().rstrip().split()) def LI(): return list(sys.stdin.readline().rstrip()) def TII(): return tuple(map(int, sys.stdin.readline().rstrip().split())) def LII(): return list(map(int, sys.stdin.readline().rstrip().split())) def LSI(): return list(map(str, sys.stdin.readline().rstrip().split())) def GMI(): return list(map(lambda x: int(x) - 1, sys.stdin.readline().rstrip().split())) def kiriage(a, b): return (a+b-1)//b N = II() ans = ['a'] * N print(''.join(ans))