class Integer
  def mod_inverse(mod)
    pow(mod - 2, mod)
  end
end

S = gets.to_i
MOD = 10 ** 9 + 7

S.times do
  n, m, x = gets.split.map(&:to_i)

  if x == 0
    puts ((m + 1).pow(n, MOD) + (m - 1).pow(n, MOD)) * 2.mod_inverse(MOD) % MOD
  else
    puts ((m + 1).pow(n, MOD) + (m - 1).pow(n, MOD)) * 2.mod_inverse(MOD) % MOD
  end
end