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 Perl (v5.18.2) (judge verdict: Wrong Answer)

#!/usr/bin/perl -w
$n=<>;
($t,$a)=split(/ /,<>);
@line = split(/ /,<>);
my $s=1;
$mini=abs($a-$t-$line[0]*0.006);

if($a>0){
    $mini=abs($a-$t-$line[0]*0.006);
    for($i=0;$i<$n;$i++){
        
        if($mini >= abs($a-$t-$line[$i]*0.006)){
            $mini=abs($a-$t-$line[$i]*0.006);
            $s=$i+1;
        }
    }
}else{
    $mini=-abs($a-$t-$line[0]*0.006);
    for($i=0;$i<$n;$i++){
    
    if($mini <= abs($a-$t-$line[$i]*0.006)){
        $mini=-abs($a-$t-$line[$i]*0.006);
        $s=$i+1;
}   
}
}
print $s;