import math 
n = int(input())
maxn = float('inf')
minn = 0
for i in range(n):
    a, b = map(int, input().split())
    minn = max(minn, math.floor(a/(b+1))+1)
    maxn = min(maxn, math.floor(a/b))
print(minn, maxn)

求最大最小就行，math库记得倒