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32
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100
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3
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123
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2
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141
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140
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10
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33
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41
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150
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41
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3
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57
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200
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10
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1
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23

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.util.*;
/*
uqytussdzppiuwxterrfyrwtsrkdpfzhjpeuuulopnnjtltdtlkzwixouxteuheqaxhaicoeveggwkcnkamluxykyktmvafajfnxmeuuulopnnjtltdtlkzwixouxteuheqaxhaicoeveggwkcnkamluxykyktmvafajfnxmefkurbbcbesiwcauwmlhmfslcavsreea
41
 */
public class Main {
    static String str;
    static int k;
    static int len;
    public static boolean judge(int mid) {
        int i, j;
        for(i=0;i<len;i++){
            for(j=i;j<len;j++)
                if((j+mid<len) && (str.charAt(j+mid)==' ' || str.charAt(j)==str.charAt(j+mid)))
                    continue;
                else break;
            if(j==i+mid){
                System.out.println("ans="+mid+" Okay");
                return true;
            }
        }
        return false;
    }
    public static int bsearch(int low,int high){
        int ans=k;
        while(low<=high){
            int mid=(low+high)/2;
            System.out.println("====mid="+mid);
            if(judge(mid)){
                low=mid+1;
                ans=mid;
            }
            else
                high=mid-1;
        }
        return ans*2;
    }
    public static int deal(){
        int i,j,ans;
        for(ans=len/2+1;ans>=0;ans--)
            for(i=0;i<len;i++){
                for(j=i;j<len;j++){
                    if((j+ans<len) && (str.charAt(j+ans)==' ' || str.charAt(j)==str.charAt(j+ans)))
                        continue;
                    else break;
                }
                if(j==i+ans){
                //  System.out.println("ans="+ans+" Okay");
                    return ans;
                }
            }
        return ans;
    }
    public static void main(String [] args){
    /*  str="uqytussdzppiuwxterrfyrwtsrkdpfzhjpeuuulopnnjtltdtlkzwixouxteuheqaxhaicoeveggwkcnkamluxykyktmvafajfnxmeuuulopnnjtltdtlkzwixouxteuheqaxhaicoeveggwkcnkamluxykyktmvafajfnxmefkurbbcbesiwcauwmlhmfslcavsreea";
        k=41;
        len = str.length() + k;
        for(int i = 0;i < k;i ++)
             str += " ";
        int i,j,ans;
        for(ans=0;ans<=len/2;ans++)
            for(i=0;i<len;i++){
                for(j=i;j<len;j++){
                    if((j+ans<len) && (str.charAt(j+ans)==' ' || str.charAt(j)==str.charAt(j+ans)))
                        continue;
                    else break;
                }
                if(j==i+ans){
                    System.out.println("ans="+ans+" Okay");
                }
            }*/
        Scanner in = new Scanner(System.in);
        while(in.hasNext()){
            str = in.next();
            k = in.nextInt();
            len = str.length() + k;
            if(k >= str.length())
                System.out.println(len/2*2);
            else{
                for(int i = 0;i < k;i ++)
                    str += " ";
                System.out.println(deal()*2);
            }
        }
    }
}