import sys
lines = sys.stdin.readlines()# sys.stdin.readlines()를 통해 파일을 끝까지 한번에 가져올 수 있음
for line in lines:
num1,num2 = map(int,line.split())
sum = num1+num2
print(sum)
aW1wb3J0IHN5cwpsaW5lcyA9IHN5cy5zdGRpbi5yZWFkbGluZXMoKSMgc3lzLnN0ZGluLnJlYWRsaW5lcygp66W8IO2Gte2VtCDtjIzsnbzsnYQg64Gd6rmM7KeAIO2VnOuyiOyXkCDqsIDsoLjsmKwg7IiYIOyeiOydjCAKZm9yIGxpbmUgaW4gbGluZXM6CiAgICBudW0xLG51bTIgPSBtYXAoaW50LGxpbmUuc3BsaXQoKSkKICAgIHN1bSA9IG51bTErbnVtMgogICAgcHJpbnQoc3VtKQ==