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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
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 12
 2
 86

import java.util.*;

public class AC2 {
    static int ai[];

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner sca = new Scanner(System.in);
        String t = sca.next();
        int len = t.length();
        ai = new int[len + 1];
        int k = sca.nextInt();
        if (k >= len) {
            if ((k + len) % 2 == 0) {
                System.out.println(k + len);
            } else {
                System.out.println(k + len - 1);
            }
        } else {
            max = 0;
            for (int i = 1; i <= len; i++) {
                ai[i] = t.charAt(i - 1);
            }
            for (int i = 1; i <= len; i++) {
                for (int j = i + 1; j <= len+k; j++) {
                    int sum = 0;
                    int l = i;
                    int temp = k;
                    boolean ju = false;
                    int r = j;

                    while (r > len || ai[l] == ai[r]) {
                        l++;
                        r++;
                        sum += 2;
                    
                        if (l == j) {
                            ju = true;
                            break;
                        }
                        if (r > len+1) {
                            temp--;
                        }
                        if (temp == 0)
                            break;
                    }
                
                    if (ju)
                        max = Math.max(max, sum);
                }
            }
            System.out.println(max);

        }
    }

    static int max;

    static void Search(int start, int k, int len) {
        int p = k + len - start + 1;
        if (p < 2) {
            return;
        }
        if (p % 2 == 0) {
            int end = p / 2;
            boolean ju = true;
            int q = 1;
            for (int i = start; i <= end + start - 1; i++) {
                if (end + q + start - 1 <= len
                        && ai[i] != ai[end + q + start - 1]) {
                    ju = false;
                    break;
                }
                q++;
            }
            if (ju) {
                max = Math.max(max, p);
            } else {
                start++;
                Search(start, k, len);
            }
        } else {
            int end = p / 2;
            boolean ju = true;
            int q = 1;
            for (int i = start; i <= end + start - 1; i++) {
                if (end + q + start - 1 <= len
                        && ai[i] != ai[end + q + start - 1]) {
                    ju = false;
                    break;
                }
                q++;
            }
            if (ju) {
                max = Math.max(max, p - 1);
            } else {
                start++;
                Search(start, k, len);
            }

        }
    }
}
