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 Go (1.6) (judge verdict: Wrong Answer)

package main

import (
	"fmt"
	"io"
	"os"
)

func Run(in io.Reader, out io.Writer) error {
	var a, b, c int64
	fmt.Fscan(in, &a, &b, &c)
	if a+b*2 >= c {
		fmt.Fprint(out, "Yes\n")
	} else {
		fmt.Fprint(out, "No\n")
	}
	return nil
}

func main() {
	in, out := os.Stdin, os.Stdout
	Run(in, out)
}