import sys
from collections import deque

def main():
    N = int(sys.stdin.readline())
    if N == 0:
        print("{}")
        return

    required = set()
    queue = deque([N])
    required.add(N)
    
    while queue:
        current = queue.popleft()
        i = 0
        bits = []
        while (1 << i) <= current:
            if (current >> i) & 1:
                bits.append(i)
            i += 1
        for bit in bits:
            if bit not in required:
                required.add(bit)
                queue.append(bit)
    
    sorted_n = sorted(required)
    memo = {}
    
    for n in sorted_n:
        i = 0
        bits = []
        while (1 << i) <= n:
            if (n >> i) & 1:
                bits.append(i)
            i += 1
        bits.sort()
        elements = [memo[bit] for bit in bits]
        elements_str = ",".join(elements)
        memo[n] = "{" + elements_str + "}"
    
    print(memo[N])

if __name__ == "__main__":
    main()