# frozen_string_literal: true require 'matrix' MOD1097 = 10**9 + 7 FIB_INIT = Vector[1, 0] FIB_MTX = Matrix[[1, 1], [1, 0]] FIB_POWS = Math.log2(10**18).ceil.succ.times.inject([FIB_MTX]) do |list, i| list + [(list.last**2).map { |x| x % MOD1097 }] end def expon(base, exp) r = 1 base %= MOD1097 curr = base while exp.positive? r = (r * curr) % MOD1097 if exp.odd? curr = (curr * curr) % MOD1097 exp /= 2 end r end def fib(n) r = 1 i = 0 while n.positive? if n.odd? r *= FIB_POWS[i] r = r.map { |x| x % MOD1097 } end n >>= 1 i += 1 end (r * FIB_INIT)[1] end if $0 == __FILE__ n = gets.to_i table = Array.new(n) { gets.split.map(&:to_i) } result = 1 table.each do |c, d| result *= expon(fib(c + 2), d) result %= MOD1097 end end puts result