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B - Prefix?

Score : $200$ points

Problem Statement

You are given two strings $S$ and $T$ consisting of lowercase English letters. Determine if $S$ is a prefix of $T$.

Constraints

• $S$ and $T$ are strings of lengths between $1$ and $100$ (inclusive) consisting of lowercase English letters.

Input

Input is given from Standard Input in the following format:

$S$

$T$

Output

Print Yes if $S$ is a prefix of $T$; print No otherwise. Note that the judge is case-sensitive.

atco
atcoder

Yes

atco is a prefix of atcoder. Thus, Yes should be printed.

code
atcoder

No

code is not a prefix of atcoder. Thus, No should be printed.

abc
abc

Yes

Note that a string is also a prefix of itself.

aaaa
aa

No