Problem:
Score : 100 points

Problem Statement

An elementary school student Takahashi has come to a variety store.

He has two coins, A-yen and B-yen coins (yen is the currency of Japan), and wants to buy a toy that costs C yen. Can he buy it?

Note that he lives in Takahashi Kingdom, and may have coins that do not exist in Japan.

Constraints

All input values are integers.

1 \leq A, B \leq 500

1 \leq C \leq 1000

Input

Input is given from Standard Input in the following format:

A B C

Output

If Takahashi can buy the toy, print Yes; if he cannot, print No.

Sample Input 1

50 100 120

Sample Output 1

Yes

He has 50 + 100 = 150 yen, so he can buy the 120-yen toy.

Sample Input 2

500 100 1000

Sample Output 2

No

He has 500 + 100 = 600 yen, but he cannot buy the 1000-yen toy.

Sample Input 3

19 123 143

Sample Output 3

No

There are 19-yen and 123-yen coins in Takahashi Kingdom, which are rather hard to use.

Sample Input 4

19 123 142

Sample Output 4

Yes

Solution in Haskell (GHC 7.10.3) (judge verdict: Runtime Error)

module Main where

import qualified Data.Map as Map
import Control.Monad

main :: IO ()
main = do
    n <- read <$> getLine
    s <- replicateM n getLine
    m <- read <$> getLine
    t <- replicateM m getLine
    print $ solve s t

solve :: [String] -> [String] -> Int
solve s t =
    let l = ((\x -> (x, 1)) <$> s) ++ ((\x -> (x, -1)) <$> t)
        m = Map.fromListWith (+) l
    in  Map.foldr (+) 0 $ Map.filter (>0) m