n = int(input())
for i in range(n):
    hi = int(input())
    ui = int(input())
H = max(hi)
W = max(ui)
if H > W:
    print(W)
    print(H)
elif H < W:
    print(H)
    print(W)
elif H == W:
    print(H)
    print(W)
