Problem:
Score : 200 points

Problem Statement

A ball will bounce along a number line, making N + 1 bounces. It will make the first bounce at coordinate D_1 = 0, and the i-th bounce (2 \leq i \leq N+1) at coordinate D_i = D_{i-1} + L_{i-1}.

How many times will the ball make a bounce where the coordinate is at most X?

Constraints

1 \leq N \leq 100

1 \leq L_i \leq 100

1 \leq X \leq 10000

All values in input are integers.

Input

Input is given from Standard Input in the following format:

N X
L_1 L_2 ... L_{N-1} L_N

Output

Print the number of times the ball will make a bounce where the coordinate is at most X.

Sample Input 1

3 6
3 4 5

Sample Output 1

2

The ball will make a bounce at the coordinates 0, 3, 7 and 12, among which two are less than or equal to 6.

Sample Input 2

4 9
3 3 3 3

Sample Output 2

4

The ball will make a bounce at the coordinates 0, 3, 6, 9 and 12, among which four are less than or equal to 9.

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ABC130B
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] input = Console.ReadLine().Split();
            int N = int.Parse(input[0]);
            int X = int.Parse(input[1]);

            string[] input2 = Console.ReadLine().Split();
            int[] L = new int[N + 1];
            L[0] = 0;
            for (int i = 1; i <= N; i++)
            {
                L[i] = int.Parse(input2[i - 1]);
            }
            //累積を計算して、座標を求める
            //Dは2～（N＋1）まで計算される
            int[] D = new int[N + 2];
            D[0] = 0;
            int count = 0;
            for (int i = 1; i <= N+1; i++)
            {
                D[i] = D[i - 1] + L[i - 1];
                if (D[i]<=X)
                {
                    count++;//もし座標がX以下だったらカウントを1増やす
                }
                else
                {
                    break;//もし座標がXを超えたら終わる
                }
            }
            Console.WriteLine(count);
        }
    }
}