
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Map;
import java.util.StringTokenizer;

public class Main {
    public static void main(String[] args) {
        FastReader sc = new FastReader();
        PrintWriter out = new PrintWriter(System.out);

        int n = sc.nextInt();
        int x = sc.nextInt();

        int[] l = new int[n];

        for (int i = 0; i < n; i++) {
            l[i] = sc.nextInt();
        }

        int[] d = new int[n + 1];

        int i = 1;
        while (i < n + 1) {
            d[i] = d[i - 1] + l[i - 1];
            i++;
        }

        Arrays.sort(d);
        int res = 0;
        int index = 0;
        while (true) {
            if (n + 1 <= index)
                break;

            if (d[index] <= x) {
                res++;
            } else {
                break;
            }
            index++;
        }

        out.println(res);
        out.flush();
    }

    //    public static void calcD(Map<Integer, Integer> dic, int index, )

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
} import java.io.BufferedReader; BufferedReader java.io import java.io.IOException; IOException java.io import java.io.InputStreamReader; InputStreamReader java.io import java.io.PrintWriter; PrintWriter java.io import java.util.Arrays; Arrays java.util import java.util.Map; Map java.util import java.util.StringTokenizer; StringTokenizer java.util public class Main {
    public static void main(String[] args) {
        FastReader sc = new FastReader();
        PrintWriter out = new PrintWriter(System.out);

        int n = sc.nextInt();
        int x = sc.nextInt();

        int[] l = new int[n];

        for (int i = 0; i < n; i++) {
            l[i] = sc.nextInt();
        }

        int[] d = new int[n + 1];

        int i = 1;
        while (i < n + 1) {
            d[i] = d[i - 1] + l[i - 1];
            i++;
        }

        Arrays.sort(d);
        int res = 0;
        int index = 0;
        while (true) {
            if (n + 1 <= index)
                break;

            if (d[index] <= x) {
                res++;
            } else {
                break;
            }
            index++;
        }

        out.println(res);
        out.flush();
    }

    //    public static void calcD(Map<Integer, Integer> dic, int index, )

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
} Main public static void main(String[] args) {
        FastReader sc = new FastReader();
        PrintWriter out = new PrintWriter(System.out);

        int n = sc.nextInt();
        int x = sc.nextInt();

        int[] l = new int[n];

        for (int i = 0; i < n; i++) {
            l[i] = sc.nextInt();
        }

        int[] d = new int[n + 1];

        int i = 1;
        while (i < n + 1) {
            d[i] = d[i - 1] + l[i - 1];
            i++;
        }

        Arrays.sort(d);
        int res = 0;
        int index = 0;
        while (true) {
            if (n + 1 <= index)
                break;

            if (d[index] <= x) {
                res++;
            } else {
                break;
            }
            index++;
        }

        out.println(res);
        out.flush();
    } main {
        FastReader sc = new FastReader();
        PrintWriter out = new PrintWriter(System.out);

        int n = sc.nextInt();
        int x = sc.nextInt();

        int[] l = new int[n];

        for (int i = 0; i < n; i++) {
            l[i] = sc.nextInt();
        }

        int[] d = new int[n + 1];

        int i = 1;
        while (i < n + 1) {
            d[i] = d[i - 1] + l[i - 1];
            i++;
        }

        Arrays.sort(d);
        int res = 0;
        int index = 0;
        while (true) {
            if (n + 1 <= index)
                break;

            if (d[index] <= x) {
                res++;
            } else {
                break;
            }
            index++;
        }

        out.println(res);
        out.flush();
    } FastReader sc = new FastReader(); sc new FastReader() PrintWriter out = new PrintWriter(System.out); out new PrintWriter(System.out) int n = sc.nextInt(); n sc.nextInt() sc.nextInt sc int x = sc.nextInt(); x sc.nextInt() sc.nextInt sc int[] l = new int[n]; l new int[n] n for (int i = 0; i < n; i++) {
            l[i] = sc.nextInt();
        } int i = 0; int i = 0; i 0 i < n i n i++ i++ i {
            l[i] = sc.nextInt();
        } {
            l[i] = sc.nextInt();
        } l[i] = sc.nextInt() l[i] l i sc.nextInt() sc.nextInt sc int[] d = new int[n + 1]; d new int[n + 1] n + 1 n 1 int i = 1; i 1 while (i < n + 1) {
            d[i] = d[i - 1] + l[i - 1];
            i++;
        } i < n + 1 i n + 1 n 1 {
            d[i] = d[i - 1] + l[i - 1];
            i++;
        } d[i] = d[i - 1] + l[i - 1] d[i] d i d[i - 1] + l[i - 1] d[i - 1] d i - 1 i 1 l[i - 1] l i - 1 i 1 i++ i Arrays.sort(d) Arrays.sort Arrays d int res = 0; res 0 int index = 0; index 0 while (true) {
            if (n + 1 <= index)
                break;

            if (d[index] <= x) {
                res++;
            } else {
                break;
            }
            index++;
        } true {
            if (n + 1 <= index)
                break;

            if (d[index] <= x) {
                res++;
            } else {
                break;
            }
            index++;
        } if (n + 1 <= index)
                break; n + 1 <= index n + 1 n 1 index break; if (d[index] <= x) {
                res++;
            } else {
                break;
            } d[index] <= x d[index] d index x {
                res++;
            } res++ res {
                break;
            } break; index++ index out.println(res) out.println out res out.flush() out.flush out String[] args args static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    } FastReader BufferedReader br; br StringTokenizer st; st public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        } FastReader {
            br = new BufferedReader(new InputStreamReader(System.in));
        } br = new BufferedReader(new InputStreamReader(System.in)) br new BufferedReader(new InputStreamReader(System.in)) String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        } next {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        } while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            } st == null || !st.hasMoreElements() st == null st null !st.hasMoreElements() st.hasMoreElements() st.hasMoreElements st {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            } try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                } IOException e {
                    e.printStackTrace();
                } e.printStackTrace() e.printStackTrace e {
                    st = new StringTokenizer(br.readLine());
                } st = new StringTokenizer(br.readLine()) st new StringTokenizer(br.readLine()) return st.nextToken(); st.nextToken() st.nextToken st int nextInt() {
            return Integer.parseInt(next());
        } nextInt {
            return Integer.parseInt(next());
        } return Integer.parseInt(next()); Integer.parseInt(next()) Integer.parseInt Integer next() next long nextLong() {
            return Long.parseLong(next());
        } nextLong {
            return Long.parseLong(next());
        } return Long.parseLong(next()); Long.parseLong(next()) Long.parseLong Long next() next double nextDouble() {
            return Double.parseDouble(next());
        } nextDouble {
            return Double.parseDouble(next());
        } return Double.parseDouble(next()); Double.parseDouble(next()) Double.parseDouble Double next() next String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        } nextLine {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        } String str = ""; str "" try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } IOException e {
                e.printStackTrace();
            } e.printStackTrace() e.printStackTrace e {
                str = br.readLine();
            } str = br.readLine() str br.readLine() br.readLine br return str; str public class Main {
    public static void main(String[] args) {
        FastReader sc = new FastReader();
        PrintWriter out = new PrintWriter(System.out);

        int n = sc.nextInt();
        int x = sc.nextInt();

        int[] l = new int[n];

        for (int i = 0; i < n; i++) {
            l[i] = sc.nextInt();
        }

        int[] d = new int[n + 1];

        int i = 1;
        while (i < n + 1) {
            d[i] = d[i - 1] + l[i - 1];
            i++;
        }

        Arrays.sort(d);
        int res = 0;
        int index = 0;
        while (true) {
            if (n + 1 <= index)
                break;

            if (d[index] <= x) {
                res++;
            } else {
                break;
            }
            index++;
        }

        out.println(res);
        out.flush();
    }

    //    public static void calcD(Map<Integer, Integer> dic, int index, )

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
} public class Main {
    public static void main(String[] args) {
        FastReader sc = new FastReader();
        PrintWriter out = new PrintWriter(System.out);

        int n = sc.nextInt();
        int x = sc.nextInt();

        int[] l = new int[n];

        for (int i = 0; i < n; i++) {
            l[i] = sc.nextInt();
        }

        int[] d = new int[n + 1];

        int i = 1;
        while (i < n + 1) {
            d[i] = d[i - 1] + l[i - 1];
            i++;
        }

        Arrays.sort(d);
        int res = 0;
        int index = 0;
        while (true) {
            if (n + 1 <= index)
                break;

            if (d[index] <= x) {
                res++;
            } else {
                break;
            }
            index++;
        }

        out.println(res);
        out.flush();
    }

    //    public static void calcD(Map<Integer, Integer> dic, int index, )

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
} Main

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.Map;
import java.util.StringTokenizer;

public class Main {
    public static void main(String[] args) {
        FastReader sc = new FastReader();
        PrintWriter out = new PrintWriter(System.out);

        int n = sc.nextInt();
        int x = sc.nextInt();

        int[] l = new int[n];

        for (int i = 0; i < n; i++) {
            l[i] = sc.nextInt();
        }

        int[] d = new int[n + 1];

        int i = 1;
        while (i < n + 1) {
            d[i] = d[i - 1] + l[i - 1];
            i++;
        }

        Arrays.sort(d);
        int res = 0;
        int index = 0;
        while (true) {
            if (n + 1 <= index)
                break;

            if (d[index] <= x) {
                res++;
            } else {
                break;
            }
            index++;
        }

        out.println(res);
        out.flush();
    }

    //    public static void calcD(Map<Integer, Integer> dic, int index, )

    static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
}