n=int(input())
max_kish=0
max_ula=0

for i in range (n):
    h, w=map(int, input().split())
    kish=min(h,w)
    ula=max(h,w)
    if kish>max_kish:
        max_kish=kish
    if ula>max_ula:
        max_ula=ula
H=max_kish
W=max_ula

if H>W:
    H, W=W, H
print(H, W)