Compose a word#8993

Compose a word

1 second
64 megabytes
Very easy

Can the letters of the word be rearranged to form the word , using each letter exactly once?

Input

The first line contains the word , and the second line contains the word . Both consist of English letters.

Output

Print Ok if it is possible to rearrange the letters of to form . Otherwise, print No.

Examples

Example 1

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Example 2

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