행렬의 덧셈

나의 코드

def solution(arr1, arr2):

    answer =[]

    for i in range(len(arr1)):

        sum_list =[]

        for k in range(len(arr1[0])):

            sum_list.append(arr1[i][k]+arr2[i][k])

        answer.append(sum_list)

    return answer

solution([[1,2],[2,3]],[[3,4],[5,6]])