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 C# (Mono 4.6.2.0) (judge verdict: Wrong Answer)

using System;
using System.Linq;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            int N = int.Parse(Console.ReadLine());
            string[] str1 = Console.ReadLine().Split(' ');
            string[] str2 = Console.ReadLine().Split(' ');

            int[] intArray = str1
                .Select(int.Parse)
                .ToArray();
            double[] HeightArray = str2
                .Select(double.Parse)
                .ToArray();
            int Answer=0;
            double Comparison=0;
            double[] AbsArray = new double[HeightArray.Length];

            for (int i = 0; i < HeightArray.Length; i++)
            {
                AbsArray[i] = System.Math.Abs(intArray[0] - (HeightArray[i] * 0.006)-intArray[1]);
                if (i == 0)
                {
                    Answer = i;
                    Comparison = AbsArray[i];
                }else if (AbsArray[i] < Comparison)
                {
                    Answer = i;
                }
            }

            Console.WriteLine(Answer+1);
        }
    }
}