import math
from fractions import Fraction
N = int(input())
A = list(map(int, input().split()))
A.sort()
x = Fraction(0, 1)
for i in range(N - 1):
    # Fraction(分子,分母)
    sub = Fraction(A[i], A[i + 1])
    #print(i, sub)
    if sub > x:
        x = sub

ans = str(x)
if '/' in ans:
    ans1, ans2 = ans.split('/')
    print(ans1, ans2)
else:
    print(x, 1)