import sys
inp = []
input_list = sys.stdin.read().split('\n')
for x in input_list:
inp.append(x.strip())
N = int(inp[0])
for i in range(1, N+1):
line = inp[i].split(' ')
A = int(line[0])
B = int(line[1])
print(A+B)
aW1wb3J0IHN5cwoKaW5wID0gW10KaW5wdXRfbGlzdCA9IHN5cy5zdGRpbi5yZWFkKCkuc3BsaXQoJ1xuJykKZm9yIHggaW4gaW5wdXRfbGlzdDoKICAgIGlucC5hcHBlbmQoeC5zdHJpcCgpKQoKTiA9IGludChpbnBbMF0pCgpmb3IgaSBpbiByYW5nZSgxLCBOKzEpOgogICAgbGluZSA9IGlucFtpXS5zcGxpdCgnICcpCiAgICBBID0gaW50KGxpbmVbMF0pCiAgICBCID0gaW50KGxpbmVbMV0pCiAgICBwcmludChBK0Ip