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Doubt Support Availability solution codechef

Doubt Support Availability solution codechef

On the CodeChef Practice page, problems with difficulty $\leq 1600$ now have Doubt Support — you can go to the problem page and get your queries answered by an experienced CodeChef Doubt Solver through the “Doubt Support” tab.

Given the difficulty of a problem, output whether this problem has Doubt Support or not.

Input Format

Doubt Support Availability solution codechef

The input consists of a single integer, $D$, which is the difficulty of the problem.

Doubt Support Availability solution codechef

Doubt Support Availability solution codechef

Output Yes if the problem has Doubt Support, or No if it doesn’t.

Each letter of the output may be printed in either lowercase or uppercase. For example, the strings yesYeS, and YES will all be treated as equivalent.

Constraints

• $1 \leq D \leq 5000$

Sample Input 1

800


Sample Output 1

Yes


Doubt Support Availability solution codechef

$800 \leq 1600$. Hence, this problem has Doubt Support.

Sample Input 2

1600


Sample Output 2

Yes


Explanation

$1600 \leq 1600$. Hence, this problem has Doubt Support.

Sample Input 3

1601


Sample Output 3

No


Doubt Support Availability solution codechef

$1601 \nleq 1600$. Hence, this problem does not have Doubt Support.

Sample Input 4

5000


Sample Output 4

No


Doubt Support Availability solution codechef

$5000 \nleq 1600$. Hence, this problem does not have Doubt Support.