2854: ABC167A - Registration

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:0 Solved:0

Description

Time Limit: 2 sec / Memory Limit: 1024 MB

Problem Statement
Takahashi wants to be a member of some web service.
He tried to register himself with the ID S, which turned out to be already used by another user.
Thus, he decides to register using a string obtained by appending one character at the end of S as his ID.
He is now trying to register with the ID T. Determine whether this string satisfies the property above.

Constraints

  • S and T are strings consisting of lowercase English letters.
  • 1|S|10
  • |T|=|S|+1

Input

Input is given from Standard Input in the following format:

S
T 

Output

If T satisfies the property in Problem Statement, print Yes; otherwise, print No.

Sample Input Copy

chokudai
chokudaiz

Sample Output Copy

Yes