#
# 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 nums int整型一维数组 
# @return int整型一维数组
#
class Solution:
    def FindNumsAppearOnce(self , nums: List[int]) -> List[int]:
        # write code here
        dic = dict()
        for x in nums:
            dic[x] = dic.setdefault(x,0)+1
        ans = []
        for k, v in dic.items():
            if v==1:
                ans += [k]
        return sorted(ans)