nums = input().split(', ')
count_of_beggars = int(input())
new_list = []

for i in range(count_of_beggars):
    current_element = 0
    for x in range(i, len(nums), count_of_beggars):
        current_element += int(nums[x])

    new_list.append(current_element)

print(new_list)