import java.io.*;
import java.util.*;
public class Main{
    static int N = 12;
    static int K = N * N;
    static int M = 1 << N;
    static int n, m;
    static long[][][] f = new long[N][K][M];
    static ArrayList<Integer> state = new ArrayList<>();
    static ArrayList<Integer>[] head = new ArrayList[M];
    static int[] cnt = new int[M];
    static boolean check(int state){
        for(int i = 0; i < N; i ++){
            if((state >> i & 1) == 1 && ((state >> i + 1) & 1) == 1) return false; 
        }
        return true;
    }
    static int count(int state){
        int res = 0;
        while(state != 0){
            if((state & 1) == 1) res ++;
            state >>= 1;
        }
        return res;
    }
    public static void main(String[] args)throws Exception{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] s1 = br.readLine().split(" ");
        n = Integer.parseInt(s1[0]);
        m = Integer.parseInt(s1[1]);
        for(int i = 0; i < 1 << n; i ++){
            if(check(i)){
                state.add(i);
                cnt[i] = count(i);
            }
        }
        for(int i = 0; i < state.size(); i ++) head[i] = new ArrayList<>();
        for(int i = 0; i < state.size(); i ++){
            int a = state.get(i);
            for(int j = 0; j < state.size(); j ++){
                int b = state.get(j);
                if(((a & b) == 0) && check(a | b)) head[i].add(j);
            }
        }
        f[0][0][0] = 1;
        for(int i = 1; i <= n + 1; i ++){
            for(int j = 0; j <= m; j ++){
                for(int k = 0; k < state.size(); k ++){
                    for(int d : head[k]){
                        int num = cnt[state.get(k)];
                        if(j >= num) f[i][j][k] += f[i - 1][j - num][d];
                    }
                }
            }
        }
        System.out.println(f[n + 1][m][0]);
    }
}