10950

## 10950 A+B-3
cnt = int(input())
A = list()
B = list()

for i in range(0, cnt):
  A_i, B_i = input().split()
  A_i = int(A_i)
  B_i = int(B_i)
  A.append(A_i)
  B.append(B_i)

for j in range(0, cnt):
  print(A[j] + B[j])