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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.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.StreamTokenizer;

public class Solution {

    public static void main(String[] args) throws Exception {
        solve(System.in, System.out);
    }

    public static void solve(InputStream inputStream, PrintStream outputStream) throws Exception {
//        StreamTokenizer in = new StreamTokenizer(new BufferedReader(new InputStreamReader(inputStream)));
		BufferedReader in = new BufferedReader(new InputStreamReader(inputStream));
        PrintWriter out = new PrintWriter(new OutputStreamWriter(outputStream));

        String s = in.readLine();
        Integer k = Integer.valueOf(in.readLine());

        int len = s.length() + k;

        int max = Math.min(2 * k, len - len % 2);

        for (int i = max + 2; i <= len; i += 2) {
            int x1 = len - i;
            int x2 = len - i / 2;
            while (x2 < s.length() && s.charAt(x1) == s.charAt(x2)) {
                x1++;
                x2++;
            }
            if (x2 == s.length()) {
                max = i;
            }
        }

        out.println(max);

        out.flush();
    }

    private static double readDouble(StreamTokenizer in) throws Exception { in.nextToken(); return in.nval; }
    private static float readFloat(StreamTokenizer in) throws Exception { return (float) readDouble(in); }
    private static int readInteger(StreamTokenizer in) throws Exception { return (int) readDouble(in); }
    private static long readLong(StreamTokenizer in) throws Exception { return (long) readDouble(in); }
    private static byte readByte(StreamTokenizer in) throws Exception { return (byte) readDouble(in); }

}