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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

import java.io.*; 
import java.util.*; 
  
public class B253 
{    
    public void solve() throws IOException  
    { 
      char[] input = nextLine().toCharArray();
      int added = nextInt();
      int potential = input.length + added;
      if(potential % 2 != 0) {
        potential--;
      }
      boolean found = false;
      while (!found) {
        if (potential == added * 2 || isValid(input, added, potential))
        {
          out.println(potential);
          return;
        }
        else
        {
          potential -= 2;
        }
      }
    } 
    
    public boolean isValid(char[] arr, int added, int potential) {
      for(int x = 0; x <= arr.length + added - potential; x++) {
        if(singleValid(arr, potential, x))
          return true;
      }
      return false;
    }
    
    public boolean singleValid(char[] arr, int potential, int offset) {
      for(int x = 0; x < potential / 2; x++) {
        if(x + offset + potential/2 < arr.length && arr[x + offset] != arr[x + offset + potential/2])
          return false;
      }
      return true;
    }
  
    public BufferedReader br; 
    public StringTokenizer st; 
    public PrintWriter out; 
  
    public String nextToken() throws IOException { 
        while(st == null || !st.hasMoreTokens()) { 
            st = new StringTokenizer(br.readLine()); 
        } 
  
        return st.nextToken(); 
    } 
      
    public String nextLine() throws IOException { 
        return br.readLine(); 
    } 
  
    public int nextInt() throws IOException { 
        return Integer.parseInt(nextToken()); 
    } 
  
    public long nextLong() throws  IOException { 
        return Long.parseLong(nextToken()); 
    } 
  
    public double nextDouble() throws IOException { 
        return Double.parseDouble(nextToken()); 
    } 
  
    public void run() throws IOException  
    {    
        boolean oj = System.getProperty("ONLINE_JUDGE") != null; 
        oj = true; 
        br = new BufferedReader( new InputStreamReader( oj ? System.in : new FileInputStream("input.txt"))); 
        out = new PrintWriter( oj ? System.out : new FileOutputStream("output.txt")); 
        solve(); 
        out.close(); 
    } 
  
    public static void main(String[] args) throws IOException  
    { 
        new B253().run(); 
    } 
} 