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141
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23

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

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

public class Main
{ 
    public static void main(String[] args) {
        new Thread(null, new Runnable() {
            public void run() {
                solve();
            }
        }, "1", 1 << 26).start();
    }
    static void solve () {
        FastReader fr =new FastReader();    PrintWriter op =new PrintWriter(System.out);
    
        String s =fr.next() ;   int l =fr.nextInt() ,n =s.length()+l ,a[] =new int[n+1] ,i ,j ,k ,m ,o ;
        for (i =0 ; i<n-l ; ++i)    a[i+1] =s.charAt(i)-97 ;  for ( ; i<n ; ++i)  a[i+1] =-1 ;
        boolean f =false ;

out:    for (i =n-(n%2) ; i>1 ; i-=2) {
            j =1 ;
            for (k =i ; k<=n ; ++k) {
                m =i/2+j ;
                for (o =j ; o<m ; ++o) {
                    if (a[o]==-1 || a[o+i/2]==-1)   continue;
                    if (a[o]!=a[o+i/2]) break ;
                }
                if (o==m)   {   f =true ;   break out ;   }
                ++j ;
            }
        }
        op.println(i) ;
        op.flush();    op.close();
    }
    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();
        }

        String nextLine() {
            String str ="";

            try
            {
                str =br.readLine();
            }
            catch(IOException e)
            {
                e.printStackTrace();
            }

            return str;
        }

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

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