def solution(numbers):
    answer = set()
    length = len(numbers)
    for i in range(length):
        for j in range(i + 1, length):
            answer.add(numbers[i] + numbers[j])
    answer = sorted(list(answer))
    return answer

d946f89097e21e4be50f7a36b14a4f81849d18d7
<mask token>

def solution(numbers):
    answer = set()
    length = len(numbers)
    for i in range(length):
        for j in range(i + 1, length):
            answer.add(numbers[i] + numbers[j])
    answer = sorted(list(answer))
    return answer
