Counter类 官方文档
https://docs.python.org/zh-cn/3/library/collections.html

用来计数，结果返回一个dict

from collections import Counter
if __name__ == "__main__":
    num = input()
    n = str(int(num)*2)
    a = Counter(num)
    b = Counter(n)
    if a==b: print("Yes")
    else: print("No")
    print(n)