[15552] 빠른 A + B

import sys
count = int(input())
lists = []
result = []

for i in range(count):
    lists.append(list(map(int, sys.stdin.readline().rstrip().split())))

for i in range(count):
    result.append(lists[i][0]+ lists[i][1])
    
for i in range(count):
    print(result[i])