def main():
    n = int(input())
    A = [i for i in range(1, n+1)]
    for i in range(n):
        a = A[i]
        c = 0
        while not a % 2:
            c += 1
            a //= 2
        A[i] = str(c+1)
    return "".join(A)

print(main())