n = int(input())
q = []
for _ in range(n):
    q = q + list(map(int, input().split()))
q = sorted(q)
m = n = q[0]
for i in range(1, len(q)):
    if q[i] == q[i - 1]:
        n = q[i - 1]
    if q[i] - q[i - 1] == 2:
        m = q[i - 1] + 1
print(m, n)