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Decent Arrays

Limits 1s, 512 MB

Given N numbers determine if they are in ascending order.

Input

The first line of the input will contain N (0 < N < 100).

The following line will contain N integers, each between 1 and 1000.

Output

Print “Yes” if the numbers were in ascending order, otherwise “No”.

Sample

InputOutput
3
1 2 3
Yes


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    88% Solution Ratio

    showmic96Earliest, 10M ago

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