Problem:
Score: 200 points

Problem Statement

A country decides to build a palace.

In this country, the average temperature of a point at an elevation of x meters is T-x \times 0.006 degrees Celsius.

There are N places proposed for the place. The elevation of Place i is H_i meters.

Among them, Princess Joisino orders you to select the place whose average temperature is the closest to A degrees Celsius, and build the palace there.

Print the index of the place where the palace should be built.

It is guaranteed that the solution is unique.

Constraints

1 \leq N \leq 1000

0 \leq T \leq 50

-60 \leq A \leq T

0 \leq H_i \leq 10^5

All values in input are integers.

The solution is unique.

Input

Input is given from Standard Input in the following format:

N
T A
H_1 H_2 ... H_N

Output

Print the index of the place where the palace should be built.

Sample Input 1

2
12 5
1000 2000

Sample Output 1

1

The average temperature of Place 1 is 12-1000 \times 0.006=6 degrees Celsius.

The average temperature of Place 2 is 12-2000 \times 0.006=0 degrees Celsius.

Thus, the palace should be built at Place 1.

Sample Input 2

3
21 -11
81234 94124 52141

Sample Output 2

3

Solution in Rust (1.42.0) (judge verdict: Accepted)

// use proconio::marker::Chars;
use proconio::{fastout, input};
use std::cmp::{max, min};

#[fastout]
fn main() {
    input! {
        n: usize,
        t: i32,
        a: i32
    };

    let mut tt = std::f64::MAX;
    let mut result = 0;

    for i in 0..n {
        input! {
            h:i32
        }

        let x = t as f64 - h as f64 * 0.006;

        if tt > (x - a as f64).abs() {
            tt = (x - a as f64).abs();
            result = i + 1;
        }
    }

    println!("{}", result);
}