Limits
1s, 512 MB

Given N numbers determine if they are in ascending order.

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

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

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

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

3 1 2 3 | Yes |