[Title Description]

$AY$ likes to climb mountains because it can bring him a good mood and state. Because $AY$ also likes to collect and analyze data, he inadvertently recorded the general trend of the height he climbed during a mountain climb:

1 3 4 10 23 20 12 4 2

Obviously, $AY$ climbed to the peak when climbing to the place with the height of '23'.

Given the number of $n$ you recorded, find the subscript of the peak. 😄

[input format]

Enter two lines in total:

First line: enter an integer $n$;

Line 2: enter $n$integers to represent the number sequence of the title description.

[output format]

The output is only an integer representing the subscript of the peak** The questions ensure that the answers are unique and have answers**

[input / output example]

9

1 3 4 10 23 20 12 4 2

4

[data range]

$0 \leq n \leq 10 ^ {12}$, each number in the sequence is within the interval of $[0,10 ^ 9]$.

[reminder]

This topic is adapted from the $852$ topic of the leetcode main station. The link: the subscript of the mountain range array