#659. Is it sorted?
If the list never goes down (each element is greater than or equal to the one before), print `Yes`, otherwise print `No`.
### Input
The first line has n, the second line has n integers separated by spaces.
### Output
`Yes` or `No`.
Examples
Input
7 7 9 0 9 4 0 8
Output
No
Input
5 1 2 2 5 9
Output
Yes
💡 You can solve it with Python, JavaScript or blocks. Read the input line by line with input(). Don't print a question (like input("Number: ")). Print exactly what the output asks for, nothing more.