#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param numbers int整型一维数组 
# @return string字符串
#
from functools import cmp_to_key
class Solution:
    def PrintMinNumber(self , numbers: List[int]) -> str:
        # write code here
        return ''.join(sorted(map(str,numbers),key=cmp_to_key(lambda x,y: 0 if x+y==y+x else 1 if x+y>y+x else -1)))