素数伴侣

def solve(____):
    def is_prime(____):
        if x < ____:
            return False
        for i in range(____, int(____) + ____):
            if x % i == ____:
                return False
        return True
    nums = list(map(int, nums.split(____)))
    odds = [n for n in nums if n % ____ == ____]
    evens = [n for n in nums if n % ____ == ____]
    pairs = ____
    for o in odds:
        for e in evens:
            if is_prime(____):
                pairs += ____
                evens.remove(____)
                break
    print(____)