N = gets.to_i
Q = gets.to_i
Query = Q.times.map{
  q,*args = gets.split
  [q.intern] + args.map(&:to_i)
}

$x = Hash.new(0)
$y = Hash.new(0)
$a = {}
$b = {}

def a(i)
  return 1 if i == 0
  $a[i] ||= if $x[i-1] == 0
    a(i-1)
  else
    $x[i-1] * b(i-1)**2 + a(i-1)
  end % (10**9+7)
end

def b(i)
  return 1 if i == 0
  $b[i] ||= if $y[i-1] == 0
    1
  else
    $y[i-1] * b(i-1) + 1
  end
end

Query.each{|q, *args|
  case q
  when :a
    puts a(args[0]) % (10**9+7)
  when :x
    $x[args[0]] = args[1]
    $a.clear
  when :y
    $y[args[0]] = args[1]
    $a.clear; $b.clear
  end
}