import java.lang.*;
import java.math.*;
import java.util.*;
import java.io.*;

public class Main {
    void solve() {
        int n=ni(),k=ni();
        int dp[][][]=new int[2][n+1][n+1];

        int dp1[][]=new int[2][n+1];

        dp[1][1][1]=1;

        dp1[1][1]=1;

        int M=998244353;
        long ans=0;
        for(int i=2;i<=n;i++){
            for(int j=1;j<=i;j++){
                Arrays.fill(dp[i%2][j],0);
            }
            Arrays.fill(dp1[i%2],0);
            for(int j=1;j<i;j++){
                for(int l=1;l<=j;l++){
                    dp[i%2][Math.max(j,l+1)][l+1]=add(dp[i%2][Math.max(j,l+1)][l+1],dp[(i-1)%2][j][l],M);

                    dp[i%2][j][1]=add(dp[i%2][j][1],dp[(i-1)%2][j][l],M);

                }
            }
            for(int j=1;j<=i;j++) {
                for(int l=1;l<=j;l++) dp1[i%2][j]=add(dp1[i%2][j],dp[i%2][j][l],M);

            }
        }

        for(int l=1;l<=n;l++){
            for(int r=1;r<=n;r++){
                if(l*r<k)
                ans+=mul(2,mul(dp1[n%2][l],dp1[n%2][r],M),M);
                if(ans>=M) ans-=M;
            }
        }


        pw.println(ans);


    }
    int add(int x,int y,int M){
        x+=y;
        if(x>=M) x-=M;
        return x;
    }
    long mul(long x,long y,int M){
        x*=y;
        if(x>=M) x%=M;
        return x;
    }



    long M=(long)1e9+7;
    InputStream is;
    PrintWriter pw;
    String INPUT = "";
    void run() throws Exception {
        is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
        pw = new PrintWriter(System.out);
        long s = System.currentTimeMillis();
        solve();
        pw.flush();
        if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");

    }

    public static void main(String[] args) throws Exception { new Main().run(); }

    private byte[] inbuf = new byte[1024];
    public int lenbuf = 0, ptrbuf = 0;

    private int readByte() {
        if(lenbuf == -1)throw new InputMismatchException();
        if(ptrbuf >= lenbuf){
            ptrbuf = 0;
            try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
            if(lenbuf <= 0)return -1;
        }
        return inbuf[ptrbuf++];
    }

    private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
    private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }

    private double nd() { return Double.parseDouble(ns()); }
    private char nc() { return (char)skip(); }

    private String ns() {
        int b = skip();
        StringBuilder sb = new StringBuilder();
        while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ')
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }

    private char[] ns(int n) {
        char[] buf = new char[n];
        int b = skip(), p = 0;
        while(p < n && !(isSpaceChar(b))){
            buf[p++] = (char)b;
            b = readByte();
        }
        return n == p ? buf : Arrays.copyOf(buf, p);
    }

    private char[][] nm(int n, int m) {
        char[][] map = new char[n][];
        for(int i = 0;i < n;i++)map[i] = ns(m);
        return map;
    }

    private int[] na(int n) {
        int[] a = new int[n];
        for(int i = 0;i < n;i++)a[i] = ni();
        return a;
    }

    private int ni() {
        int num = 0, b;
        boolean minus = false;
        while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
        if(b == '-'){
            minus = true;
            b = readByte();
        }

        while(true){
            if(b >= '0' && b <= '9'){
                num = num * 10 + (b - '0');
            }else{
                return minus ? -num : num;
            }
            b = readByte();
        }
    }

    private long nl() {
        long num = 0;
        int b;
        boolean minus = false;
        while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
        if(b == '-'){
            minus = true;
            b = readByte();
        }

        while(true){
            if(b >= '0' && b <= '9'){
                num = num * 10 + (b - '0');
            }else{
                return minus ? -num : num;
            }
            b = readByte();
        }
    }
    private boolean oj = System.getProperty("ONLINE_JUDGE") != null;
    private void tr(Object... o) { if(INPUT.length() > 0)System.out.println(Arrays.deepToString(o)); }
}