#
# 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 cows int整型一维数组 
# @return int整型一维数组
#
class Solution:
    def sortCows(self , cows: List[int]) -> List[int]:
        # write code here
        if not cows:
            return []
        g= []
        f= []
        
            
        for i in cows:
            if i == 1:
                g.append(i)
            if i == 0:
                f.append(i)
        
        return f+g