n = int(input())
a = list(map(int, input().split()))

s_pos = 1
l_pos = 1
s = a[0]
l = a[0]

for i in range(1, n):
    if a[i] < s:
        s = a[i]
        s_pos = i + 1
    if a[i] > l:
        l = a[i]
        l_pos = i + 1

print(s_pos, l_pos)

def f_p(s, e):
    return [n for n in range(max(2, s + 1), e) if all(n % i != 0 for i in range(2, int(n**0.5) + 1))]

import sys
s, e = map(int, sys.stdin.read().split())
print(f_p(s, e))