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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.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class TandemRepeat {
    public static void main(String[] args) throws IOException {
        input.init(System.in);
        String s = input.next();
        int k = input.nextInt();
        int x = s.length() + k;
        int c = 0;
        int beg = 0;
        if (x % 2 != 0) {
            x--;
            c++;
            beg = c;
        }
        int n = x / 2;
        int res = 0;
        for (int i = c; i < s.length(); i++) {
            if (i + n >= s.length()) {
                if (i + 1 == n) {
                    res = 2 * n;
                    break;
                }
            } else if (s.charAt(i) != s.charAt(i + n)) {
                x -= i + 1;
                if (x % 2 != 0) {
                    x--;
                    i++;
                }
                beg = i+1;
                n = x / 2;
            }
        }

        System.out.println(s.length() - beg + k);

    }

    public static class input {
        static BufferedReader reader;
        static StringTokenizer tokenizer;

        /** call this method to initialize reader for InputStream */
        static void init(InputStream input) {
            reader = new BufferedReader(new InputStreamReader(input));
            tokenizer = new StringTokenizer("");
        }

        /** get next word */
        static String next() throws IOException {
            while (!tokenizer.hasMoreTokens()) {
                // TODO add check for eof if necessary
                tokenizer = new StringTokenizer(reader.readLine());
            }
            return tokenizer.nextToken();
        }

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

        static double nextDouble() throws IOException {
            return Double.parseDouble(next());
        }

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