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64
 200
 6
 246
 220
 108
 6
 334
 280
 20
 266
 60
 10
 142
 58
 120
 134
 172
 400
 186
 60
 230
 8
 190
 46
 74
 54
 400
 12
 2
 86

/*
 * Remember a 7.0 student can know more than a 10.0 student.
 * Grades don't determine intelligence, they test obedience. 
 * I Never Give Up.
 */
import java.util.*;
import java.io.*;

//import javafx.util.Pair;
import static java.lang.System.out;
import static java.util.Arrays.*;
import static java.lang.Math.*;
public class ContestMain {
	private static Reader in=new Reader();
	private static StringBuilder ans=new StringBuilder();
	private static long MOD=1000000007;//10^9+7 
	private static final int N=1000000;//10^6
//	private static final double PI=3.1415;
//	private static ArrayList<Integer> v[]=new ArrayList[N];
//	private static int color[]=new int[N]; //For Graph Coloring
//	private static boolean mark[]=new boolean[N];
//	private static BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
//	private static void dfs(int node){mark[node]=true;for(int x:v[node]){if(!mark[x]){dfs(x);}}}
	private static long powmod(long x,long n,long m){
		if(n==0)return 1;
		else if(n%2==0)return(powmod((x*x)%m,n/2,m));
		else return (x*(powmod((x*x)%m,(n-1)/2,m)))%m;
	}
	public static void solve(long ar[],int n){
		
	}
	public static void main(String[] args) throws IOException{
		StringBuilder s=new StringBuilder(in.next());
		StringBuilder temp=new StringBuilder();
		int k=in.nextInt();
		int n=(s.length()+k);
		n--;
		for(int i=n/2;i<=n;i--){
			if(k==0)break;
			temp.append(s.charAt(i));
			k--;
		}
		temp=temp.reverse();
		s.append(temp);
		n=s.length()-1;
		int max_l=Integer.MIN_VALUE,l;
//		out.println(s);
		for(int i=0;i<n;i++){
			l=1;
			while(i+l+l-1<=n){
//				out.print(s.substring(i,i+l)+" "+s.substring(i+l,i+l+l)+" - ");
				int cnt=0,j;
				for(j=i;j<i+l;j++){
					if(s.charAt(j)!=s.charAt(i+l+cnt++))break;
				}
				if(j==i+l){
					max_l=max(max_l,i+l+l-i);
				}
				l++;
			}
//			out.println();
		}
		out.println(max_l);
	}
	static class Reader{
        BufferedReader br;
        StringTokenizer st;
        public Reader()
        {
            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;
        }
    }
}     