#include <iostream>
#include <fstream>
#include <cstring>

using namespace std;

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

const int NMAX = 1000010;

short TESTS;
int sl, lps[NMAX + 1];
char s[NMAX + 1];

int generLps() {
    int ans = 0;
    lps[0] = -1;
    for(int i = 0, j = -1; i < sl;) {
        while(j >= 0 && s[i] != s[j])
            j = lps[j];
        lps[++i] = ++j;

        int rep = i - lps[i];
        if(i % rep == 0 && rep != i) {
            ans = i;
        }
    }
    return ans;
}

int main()
{
    fin >> TESTS;
    while(TESTS--) {
        fin >> s;
        sl = strlen(s);
        fout << generLps() << "\n";
    }
    return 0;
}