nums = [int(i) for i in input().split()]
i = 0
list1 = []
for i in range(len(nums)):
    if i == 0:
        sum1 = nums[-1] + nums[1]
        list1.append(sum1)
        i += 1
    elif i == len(nums):
        sum1 = nums[0] + nums[-2]
        list1.append(sum1)
        print(list1)
    else:
        sum1 = nums[i + 1] + nums[i - 1]
        list1.append(sum1)
        i += 1