珠心算测验

def solve(nums_str):
    nums = list(map(int, nums_str.split(',')))
    nums_set = set(nums)
    result = 0
    for num in nums:
        found = False
        for i in range(len(nums)):
            for j in range(i + 1, len(nums)):
                if nums[i] + nums[j] == num:
                    found = True
                    break
            if found:
                break
        if found:
            result += 1
    print(result)