from functools import lru_cache

N = int(input())
ans_set = set()

@lru_cache
def func(n):
    global ans_set
    
    if n == 0:
        return "{}"
    
    else:
        
        i_list = [i for i in range(21) if 2 ** i <= n]
        
        i_list_final = [i for i in i_list if (n & (1<<i) > 0)]
        #print(i_list_final)
        
        tmp = ",".join(list({func(i) for i in i_list_final}))
        return "{" + tmp + "}"

ans = func(N)
print(ans)