import Control.Monad
import qualified Data.Vector as V
import Data.List
import Data.Int

{-- n^p mod m --}
powerMod :: Integral a => a -> a -> a -> a
powerMod n 0 m = 1
powerMod n 1 m = n `mod` m
powerMod n p m = (k * k * (if mod p 2 == 0 then 1 else n)) `mod` m
  where
    k = powerMod n (div p 2) m

modinv n p = powerMod n (p-2) p

factorials n m = scanl (\a b -> (a*b) `mod` m) 1 [1..n]

divisor = 10^9+7
numElem = 10^6*2

factorials_ = V.fromList $ factorials numElem divisor
invfactorials_ = V.fromList $
  reverse $ scanl (\a b -> (a*(b+1))`mod`divisor) (modinv (factorials_ V.! (fromIntegral numElem)) divisor) (reverse [0..numElem-1])

combinationModP_2 n k
  | n < k || n < 0 || k < 0 = 0
  | otherwise = (factorials_ V.! n * invfactorials_ V.! k * invfactorials_ V.! (n-k)) `mod` divisor
permutationMod_2 n k
  | n < k || n < 0 || k < 0 = 0
  | otherwise = (factorials_ V.! n * invfactorials_ V.! (n-k)) `mod` divisor
hcombinationModP_2 n k
  | n < 0 || k < 0 = 0
  | otherwise = combinationModP_2 (n+k-1) k


parse (c:s) = case c of
                 'C' -> combinationModP_2 n k
                 'P' -> permutationMod_2 n k
                 'H' -> hcombinationModP_2 n k
  where
    s' = tail . init $ s
    Just i = elemIndex ',' s'
    (n,k) = (\(a,b) -> (read a, read $ tail b)) $ splitAt i s'

main = do
  n <- readLn :: IO Int

  replicateM_ n $ do
    s <- getLine
    print $ parse s