Problem Statement

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

What is a prefix? A prefix of a string $T_1T_2\\ldots T_N$ of length $N$ is a string expressed as the first $i$ characters of $T$, $T_1T_2\\ldots T_i$, where $i$ is an integer such that $0 \\leq i \\leq N$. For example, when $T =$ abc, there are four prefixes of $T$: an empty string, a, ab, and abc.

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.

Sample Input 1

atco
atcoder

Sample Output 1

Yes

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

Sample Input 2

code
atcoder

Sample Output 2

No

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

Sample Input 3

abc
abc

Sample Output 3

Yes

Note that a string is also a prefix of itself.

Sample Input 4

aaaa
aa

Sample Output 4

No