# Practice on Toph

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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”.

#### Samples

Input | Output |
---|---|

3 1 2 3 | Yes |