Problem Statement

Takahashi is heading to AtCoder Land.
There is a signboard in front of him, and he wants to determine whether it says AtCoder Land.

You are given two strings S and T separated by a space.
Determine whether S= AtCoder and T= Land.

Input

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

Output

If S= AtCoder and T= Land, print Yes; otherwise, print No.

Constraints

• S and T are strings consisting of uppercase and lowercase English letters, with lengths between 1 and 10, inclusive.

Sample Input 1

AtCoder Land

Sample Output 1

Yes

S= AtCoder and T= Land.

Sample Input 2

CodeQUEEN Land

Sample Output 2

No

S is not AtCoder.

Sample Input 3

aTcodeR lANd

Sample Output 3

No

Uppercase and lowercase letters are distinguished.

见题面 Input 部分

见题面 Output 部分