Problem:
Score : 100 points

Problem Statement

Snuke is going to open a contest named "AtCoder s Contest".
Here, s is a string of length 1 or greater, where the first character is an uppercase English letter, and the second and subsequent characters are lowercase English letters.

Snuke has decided to abbreviate the name of the contest as "AxC".
Here, x is the uppercase English letter at the beginning of s.

Given the name of the contest, print the abbreviation of the name.

Constraints

The length of s is between 1 and 100, inclusive.

The first character in s is an uppercase English letter.

The second and subsequent characters in s are lowercase English letters.

Input

The input is given from Standard Input in the following format:

AtCoder s Contest

Output

Print the abbreviation of the name of the contest.

Sample Input 1

AtCoder Beginner Contest

Sample Output 1

ABC

The contest in which you are participating now.

Sample Input 2

AtCoder Snuke Contest

Sample Output 2

ASC

This contest does not actually exist.

Sample Input 3

AtCoder X Contest

Sample Output 3

AXC

Solution in Haskell (GHC 7.10.3) (judge verdict: Accepted)

{-# LANGUAGE FlexibleInstances    #-}
{-# LANGUAGE TypeSynonymInstances #-}

import           Control.Applicative
import           Control.DeepSeq
import           Control.Monad
import           Control.Monad.ST
import qualified Data.Array                    as A
import qualified Data.Array.IArray             as IA
import qualified Data.Array.IO                 as AI
import qualified Data.Array.MArray             as MA
import qualified Data.Array.ST                 as STA
import qualified Data.Array.Unboxed            as AU
import           Data.Bits
import qualified Data.ByteString.Char8         as BS
import           Data.Char
import qualified Data.Graph                    as G
import           Data.Int
import qualified Data.IntMap                   as IM
import qualified Data.IntSet                   as IS
import           Data.List
import qualified Data.Map.Strict               as M
import           Data.Maybe
import           Data.Ord
import qualified Data.Sequence                 as SQ
import qualified Data.Set                      as S
import           Data.Time
import qualified Data.Tree                     as T
import qualified Data.Vector                   as V
import qualified Data.Vector.Mutable           as VM
import qualified Data.Vector.Unboxed           as VU
import qualified Data.Vector.Unboxed.Mutable   as VUM

readInt :: IO [Int]
readInt = map (fst . fromJust . BS.readInt) . BS.words <$> BS.getLine

readInts :: Int -> IO [[Int]]
readInts n = replicateM n readInt

readInteger :: IO [Integer]
readInteger = map (fst . fromJust . BS.readInteger) . BS.words <$> BS.getLine

readIntegers :: Int -> IO [[Integer]]
readIntegers n = replicateM n readInteger

readString :: IO [String]
readString = map BS.unpack . BS.words <$> BS.getLine

readStrings :: Int -> IO [[String]]
readStrings n = replicateM n <$> readString

toPair :: [a] -> (a, a)
toPair [x, y] = (x, y)

count :: Eq a => a -> [a] -> Int
count a as = length $ filter (== a) as

put :: Show a => a -> IO ()
put = putStr . show

putList :: Show a => [a] -> IO ()
putList [n     ] = put n
putList (n : ns) = do
  put n
  putStr " "
  putList ns

putStrList :: [String] -> IO ()
putStrList [n     ] = putStr n
putStrList (n : ns) = do
  putStr n
  putStr " "
  putStrList ns

yesNoUpper b | b         = putStrLn "YES"
             | otherwise = putStrLn "NO"

yesNo b | b         = putStrLn "Yes"
        | otherwise = putStrLn "No"

main = do
  [a,b,c]<-readString
  putStrLn $ "A"++ [head b] ++"C"