from collections import deque
mod=10**9+7
th=10**9
class MyQue:
  """
  value:10**9未満判定、pop時のvalue_pyrの計算に使用
  value_pyr:積の積の計算に使用。
  """
  def __init__(self):
    self.q=deque()
    self.value=1
    self.value_pyr=1
    self.length=0
  def push(self,x):
    self.value*=x
    self.q.append(x)
    #assert self.value<th
    self.length+=1
    self.value_pyr*=pow(x,self.length,mod)
    if self.value_pyr>=mod:self.value_pyr%=mod    
  def pop(self):
    #assert self.length>0,(self.value,q,self.length)
    self.value_pyr*=pow(self.value,mod-2,mod)
    if self.value_pyr>=mod:self.value_pyr%=mod
    x=self.q.popleft()
    self.value//=x
    #assert self.value<th
    self.length-=1
    
n=int(input())
a=list(map(int,input().split()))

q=MyQue()
ans=1
for i in range(n):
  if a[i]==0:
    del q
    q=MyQue()
    continue
  while q.value*a[i]>=th:
    q.pop()
  q.push(a[i])
  ans*=q.value_pyr
  if ans>=mod:ans%=mod
print(ans)