import java.util.Scanner;


public class Main {

    public static String Y = "Yes";
    public static String N = "No";
    public static String I = "IMPOSSIBLE";
    public static String B = "Bad";
    public static String G = "Good";
    public static long MOD = (long) (Math.pow(10, 9) + 7);
    public static Scanner sc = new Scanner(System.in);

    static int n;
    static int m;
    static int x;
    static int loopCount = 0;
    static int[][] a;
    static int[] c;
    static int sum_c = 0;
    static int[] sum_c_save;
    static int[] understand;

    public static void main(String[] args) {

        int n = ni();
        int x = ni();

        int now = 0;
        int count = 1;
        for (int i = 0; i < n; i++) {
            now += ni();

            if (now <= x) {
                count++;
            }
        }
        out(count);
    }

    /*
     * 以下メソッド集
     */
    static int ni() {

        return sc.nextInt();
    }

    static long nl() {

        return sc.nextLong();
    }

    static String n() {

        return sc.next();
    }

    static char[] nc() {

        return sc.next().toCharArray();
    }

    static int kaijo(int n) {

        if (n == 0 || n == 1) {
            return 1;
        } else {
            return n * kaijo(n - 1);
        }
    }

    static int fib(int n) {

        return (n == 1 || n == 0) ? n : fib(n - 2) + fib(n - 1);
    }

    static long lcm(long m, long n) {

        return m * n / gcd(m, n);
    }

    static int lcm(int m, int n) {

        return m * n / gcd(m, n);
    }

    static long gcd(long a, long b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static int gcd(int a, int b) {

        return (b == 0) ? a : gcd(b, a % b);
    }

    static void out(String info) {

        System.out.println(info);
    }

    static void out(int info) {

        System.out.println(info);
    }

    static void out(double info) {

        System.out.println(info);
    }

    static void out(long info) {

        System.out.println(info);
    }

    static void out(char info) {

        System.out.println(info);
    }

    static void outn(String info) {

        System.out.print(info);
    }

    static void outn(int info) {

        System.out.print(info);
    }

    static void outn(double info) {

        System.out.print(info);
    }

    static void outn(long info) {

        System.out.print(info);
    }

    static void outn(char info) {

        System.out.print(info);
    }

    static int max(int a, int b) {

        return Math.max(a, b);
    }

    static long max(long a, long b) {

        return Math.max(a, b);
    }

    static int min(int a, int b) {

        return Math.min(a, b);
    }

    static long min(long a, long b) {

        return Math.min(a, b);
    }
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz