jtifziirovbklaioslunwvtdavraandnzcwqbealbvqonoxufqrsewwrzvkrecrfqhdduwmcdcdhdtvpyshfhgdwdkmglskidhzayvouwhumzhcphocqyfcdddhzayvouwhumzhcphocqyfcddayfakoxofjgusuonehbxbokjsdlktqrcdurogxltsysyjbiagrvhky
32
 kbxuunznjtxutlauuuipifggjjkequbpvbagmxojhgxtakxioxsmrmoatlyzwsygibhafspqnfbycyztxmtpirqcyhalluhhubne
100
 zwvrx
3
 wccknxhbqzjwaseubvizxuisnzneatgjhaatrfydssgzufyztesrxnjlbhckybqlbncvqgjcoupirpqnnmacejicjzhattqolmclqnotctcsliyvjwutvrtrhichssehtlwbrq
123
 cznjenwypyeulxzdxfhalfbyefhhgieybtzjmbdirrpybxnftpcqfhrhiifsfkllztwejdvhvtnxecnfgwwxhhcsjsqzhrjddauttbxphfzljgbvcqshateqeulxzdxfhalfbyefhhgieybtzjmbdirrpybxnftpcqfhrhiifsfkllztwejdvhvtnxecnfgwwxhhcsjs
41
 ezlrqvaeekbnkqqjcijtkaoisqpbguqfsqxtzjotdhtrnaoxutybbqzzhrqvaeekbnkqqjcijtkaoisqpbguqfsqxtzjotdhtrnaoxutybbqzzhzoeptxwaunvarfcapxsnamwjyqpxbiegizqotuqen
15
 zumtumtlitf
2
 wqlvwkiiqfmesejedhyjjfgzqfmiqyaiqefzaywrdundcmbfvhdflrpvkitbltbrzedvozltptkaanbpmjvsdnpthcepfydrdlscexczxwzyatupzlxdhnezdsipeyjqmbvoavsgeuulkqkexpwpttvxeovcjrqnzdeiaatzglvwkiiqfmesejedhyjjfgzqfmiqyaiq
141
 nemtbujbscvkgxnbqboeohzfozihjvhcllfseiouggzojhqcoqrvtdsgkubiophnhahgplhtjxblicnavkayzsydmxphgfvhlllontqfpqitrpjiadpmogtqyjhqfpqitrpjiadpmogtqyjhvaopbzglvdmwzsrhtsszyengbihrrzljvofgugmjedgujhzvlebpprue
140
 skllmtqzajnzjkuflkazjku
10
 ngkdgsdxouojadjqzgxewuuyxdlxulgrblxpkyzhgmkeatmhvbdelmxxrqtsarfvotcxfuiqsxbnczbadelhxtlfwrnbisayeveiejvycllhkictyyriqseznziyurlgiejvycllhkictyyriqseznziyurlgwiubyvqfmabhstqalicamyholkqlvtjfhcfbyr
133
 uzfvkgoaimitrlfjn
43
 ijtvifbuajod
5
 cxpleheyfwu
132
 lfydqwrwevvvclkkainwxwvqf
33
 kitxizqtbzwjqldmhwpmznaoddtgqzithwvyeyuixxhlnmksmsysikftzrskbnriebbwzermgcxalwpmznaoddtgqzithwvyeyuixxhlnmksmsy
32
 uqytussdzppiuwxterrfyrwtsrkdpfzhjpeuuulopnnjtltdtlkzwixouxteuheqaxhaicoeveggwkcnkamluxykyktmvafajfnxmeuuulopnnjtltdtlkzwixouxteuheqaxhaicoeveggwkcnkamluxykyktmvafajfnxmefkurbbcbesiwcauwmlhmfslcavsreea
41
 xaxgnvphqavbuxzkcsptsih
150
 zonkpassuptcnpeoogztfpaspwdwnmiwsxeskfajlpfswzrdcxhlzxrgddtgmnngevbiybdnwelkzonhrzgldriyymrzduulifphxypcaqurgeqitkxxnsqdpsxattjoncmhihgxdaxixkmockynyjefvhrzgldriyymrzduulifphxypcaqurgeqitkxxnsqdpsxatt
200
 ifglyzxttgfpcgvpfmfmjhuzmgmaiivnbrzjevgxosclwqfewklzstkjmnjmqgpeshndmzrtthpjbhuqoldgvkkmkqinkptatpytrchkvjyeimsfmjhuzmgmaiivnbrzjevgxosclwqfewklzstkjmnjmqgpeshndmzrtthpjbhuqoldgvkkmkqinkptatpytrchkvjy
15
 mklxokaoaxzccddmsxzc
41
 eluswgbaoqmkfymoidkripnpgmbvhydcuupfhecefgosemhverqwzxklzzacdgcrrlzdnocxmzxtiamqpxspfogqhrlsnfzdexamrkowqpqggolnrvxfhenedmfzngnavgnjkzsnkjjjfcgfqjuywmrt
115
 xbmrxbmrkzovhb
3
 ktkkckrzvjhdspjmtljrmwgfoxeuadhajkfjpcmquqldlkutwyqaupnypwqfbxbuaaywcflplmqxnvwmkzpdvvkgxkmsggxmdangeyudqrgrihgbljrmwgfoxeuadhajkfjpcmquqldlkutwyqaupnypwqfbxbuaaywcflplmqxnvwmkzpdvvkgxkmsggxmdangeyudq
57
 thdnszfpaznmjlzacpovjcvybdkynhnvkaxvncfpofvnfpkggyfvqbklvrnbwpjswbrvjvqyzheslzxvuuqpbrvjvqyzheslzxvuuqprxasesuweenacripkyevplccdlxocfuqklypxactpajkmhcsgbxwgznizwndthualdbbgxhrtdrodoiddzdmxtatssfsuksqz
23
 fonwebmlwaxthdwche
57
 pdgrwrozhkrwwgebwvuilwm
32
 jhfwjyyzwrjiyrrgveiqkoltivghgkontrqragikttxxuwszjwqhwxindyrdqhucnbwgwrppgqmsasrzohezjlfmkzsqptwpratprcrxyxecnlsaiqrvimihmhjfgzwdtvmfhgbuonpsblphyoxzclkrwbwrkasahiirzqlfjdoomlosltldbpomyyhmdwfchzxnmwlh
200
 ayi
10
 eexlzphiay
1
 auxrkguktewrcwwklhmuxkgdialidacmjinwcsrtfrtdsvqsbwuqtsrmsyizsvdkbqwrbuphqqvzktqkskylnnqbezibqnaytuuqddrigdkbqwrbuphqqvzktqkskylnnqbezi
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.*;
import java.io.*;
import java.math.*;
@SuppressWarnings("unchecked")
public class Main {
    InputReader ir = new InputReader(System.in);
    PrintWriter out = new PrintWriter(System.out);
    
    void solve(){
       char arr[] = ir.readString().toCharArray();
       int n = arr.length;
       int nk = ir.readInt();
       int vlen = n + nk;
       int ans = Integer.MIN_VALUE;
       for(int i = 1; i <= vlen/2; i++) {
            for(int j = 0; j <= vlen - 2*i; j++) {
                if(j >= n) {
                    ans = Math.max(ans, 2 * i);
                    continue;
                }
                boolean f = true;
                for(int k = 0; k < i; k++) {
                    int x = k + j;
                    int y = x + i;
                    if(x >= n || y >= n)
                        break;
                    if(arr[x] != arr[y]) {
                        f = false;
                        break;
                    }
                }
                if(f) {
                    ans = Math.max(ans, 2 * i);
                }
            }
       } 
       out.println(ans); 
    }
    void run() {
        solve();
        out.close();
    }
    public static void main(String args[]) {
        new Main().run();
    }
}


class InputReader {
 
    private InputStream stream;
    private byte[] buf = new byte[1024];
    private int curChar;
    private int numChars;
    private SpaceCharFilter filter;
 
    public InputReader(InputStream stream) {
        this.stream = stream;
    }
 
    public int read() {
        if (numChars == -1)
            throw new InputMismatchException();
        if (curChar >= numChars) {
            curChar = 0;
            try {
                numChars = stream.read(buf);
            } catch (IOException e) {
                throw new InputMismatchException();
            }
            if (numChars <= 0)
                return -1;
        }
        return buf[curChar++];
    }
    public final int readInt() {
            int c = read();
            while (isSpaceChar(c))
                c = read();
            int sgn = 1;
            if (c == '-') {
                sgn = -1;
                c = read();
            }
            int res = 0;
            do {
                if (c < '0' || c > '9')
                    throw new InputMismatchException();
                res *= 10;
                res += c - '0';
                c = read();
            } while (!isSpaceChar(c));
            return res * sgn;
    }
    public long readLong() {
        int c = read();
        while (isSpaceChar(c))
            c = read();
        int sgn = 1;
        if (c == '-') {
            sgn = -1;
            c = read();
        }
        long res = 0;
        do {
            if (c < '0' || c > '9')
                throw new InputMismatchException();
            res *= 10;
            res += c - '0';
            c = read();
        } while (!isSpaceChar(c));
        return res * sgn;
    }
 
    public String readString() {
        int c = read();
        while (isSpaceChar(c))
            c = read();
        StringBuilder res = new StringBuilder();
        do {
            res.appendCodePoint(c);
            c = read();
        } while (!isSpaceChar(c));
        return res.toString();
    }
 
    public boolean isSpaceChar(int c) {
        if (filter != null)
            return filter.isSpaceChar(c);
        return isWhitespace(c);
    }
        public double readDouble() {
        return Double.parseDouble(readString());
    }
 
    public static boolean isWhitespace(int c) {
        return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
    }
 
    public String next() {
        return readString();
    }
 
    public interface SpaceCharFilter {
        public boolean isSpaceChar(int ch);
    }
}
class Pair <Type1 extends Comparable<Type1>, Type2 extends Comparable<Type2>> implements Comparable <Pair<Type1, Type2>>{
    Type1 first;
    Type2 second;
    public Pair(Type1 F, Type2 S) {
        this.first = F;
        this.second = S;
    }
    @Override 
    public int compareTo(Pair <Type1, Type2> p) {
        if(first.compareTo(p.first) == 0)
            return second.compareTo(p.second);
        return first.compareTo(p.first);
    }
}
