while 1:

    try:

        a, b = input().split()

        print(int(a) + int(b))

    except:

        break
while 1:

    try:

        a, b = list(map(int, input().split()))

        print(a + b)

    except:

        break
while 1:
    try:
        a, b = input().split()
        print(int(a) + int(b))
    except:
        break

while 1:
    try:
        a, b = list(map(int, input().split()))
        print(a + b)
    except:
        break

-        a, b = input().split() -        print(int(a) + int(b)) +        a, b = list(map(int, input().split())) +        print(a + b)