#include<fstream>
#include<cstring>
using namespace std;
ifstream fin("prefix.in");
ofstream fout("prefix.out");
int t,i,urm[1000001],n;
char p[1000001];
void Prefix()
{
    int k=0;
    urm[1]=0;
    for(int i=2;i<=n;++i)
    {
        while(k>0&&p[i]!=p[k+1])
        k=urm[k];
        if(p[i]==p[k+1]) k++;
        urm[i]=k;
    }
}
int main()
{
    fin>>t;
    while(t--)
    {
        fin>>(p+1);
        n = strlen(p+1);
        Prefix();
        bool ok=false;
        for(i=n;i&&!ok;i--)
        if(urm[i]&&i%(i-urm[i])==0)
            fout<<i<<"\n",ok=true;
        if(!ok)
            fout<<"0\n";
    }
    fin.close();
    fout.close();
    return 0;
}