#include <fstream>
#include <cstring>

using namespace std;

char s[1000005];
int prefix[1000005];

void buildPrefix(int l)
{
    prefix[1] = 0;
    for(int i = 2, j = 0; i <= l; ++i)
    {
        while(j && s[j+1] != s[i]) j = prefix[j];
        if(s[j+1] == s[i]) j++;
        prefix[i] = j;
    }
}

int main()
{
    ifstream fin ("prefix.in");
    ofstream fout("prefix.out");

    int t, n;
    fin >> t;
    fin.get();
    while(t--)
    {
        fin.getline(s+1, 1000005);
        n = strlen(s+1);
        buildPrefix(n);

        int i;
        for(i = n; i; --i)
            if(prefix[i] && prefix[i] % (i - prefix[i]) == 0)
            {
                fout << i << '\n';
                break;
            }
        if(!i) fout << "0\n";
    }
    fin.close(); fout.close();
    return 0;
}