题解 | 多组数据a+b III

'''
超时
s=[]
for i in range(1000):
    a,b=map(int,input().split())
    s.append(a)
    s.append(b)
    if a==0 and b==0:
        break
for i in range(0,len(s)//2,2):
    print(s[i]+s[i+1])
'''
'''
a,b=list(map(int,input().split()))
while(a!=0 or b!=0):
    print(a+b)
    a,b=list(map(int,input().split()))
'''
while 1:
    a,b=map(int,input().split())
    if a==b==0:
        break
    print(a+b)