n = int(input())
a = list(map(int,input().split()))
from collections import deque
a.sort()
q = deque(a)
cnt = 1
# print(a)
while len(q) > 1:
    if cnt & 1:
        a,b = q.pop(),q.pop()
        q.append(a*b)
    else:
        a,b = q.pop(),q.popleft()
        q.appendleft((-(-b//a)))
    cnt += 1
print(q.pop())