dic = {}
def dfs(x):
    if x == 0:
        return "{}"

    if x in dic:
        return dic[x]
    l = []

    for i in range(20):
        if x >> i & 1:
            l.append(dfs(i))
    
    out = "{" + ",".join(l) + "}"
    dic[x] = out
    return out
n = int(input())
print(dfs(n))