# frozen_string_literal: true
n = gets.to_i
table = Array.new(n) { gets.split.map(&:to_i) }.to_h

MOD1097 = 10**9 + 7

def exp(b, e)
  return 1 if e.zero?
  return b if e == 1
  ((exp(b, e / 2)**2 % MOD1097) * (e.even? ? 1 : b)) % MOD1097
end

result = 1
pre0 = 1
pre1 = 1
(1..table.keys.max).each do |i|
  curr = (pre0 + pre1) % MOD1097
  if (n = table[i])
    result = (result * exp(curr, n)) % MOD1097
  end
  pre0, pre1 = pre1, curr
end

puts result