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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.awt.GradientPaint;
import java.awt.geom.Line2D;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.PriorityQueue;
import java.util.Queue;
import java.util.Scanner;
import java.util.Stack;
import java.util.StringTokenizer;

public class a {
	public static class node {
		long one;
		long two;

		node(long index, long val) {
			one = index;
			two = val;

		}

	}

	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		StringBuilder q = new StringBuilder();
		PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));
		String u = in.readLine();
		int n = Integer.parseInt(in.readLine());
		int sum = u.length() + n;
		int st = sum / 2;
		boolean flag = true;

		for (int i = st; i >= 1 && flag; i--) {

			for (int j2 = 0; j2 < u.length() && flag; j2++) {
				if (u.length() - j2 + n >= i * 2) {
					int j;
					for (j = j2; j < j2+i; j++) {
						if (j + i >= u.length()){
							continue;
						}
						if (u.charAt(j) != u.charAt(j + i))
							break;
					}

					if (j == i) {
						System.out.println(i*2);
						flag = false;
						break;
					}
				}

			}

		}
		if(flag)
			System.out.println(2);

		out.close();

	}
}