#include <fstream>

using namespace std;

ifstream in("prefix.in");
ofstream out("prefix.out");
int t;
string s;
int lps[1000005];
int pref[1000005];

void test()
{
    in>>s;

    for(int i = 0; i<s.size(); i++)
    {
        lps[i] = pref[i] = 0;
    }

    int i = 1;
    int j = 0;
    while(i < s.size())
    {
        if(s[i] == s[j])
        {
            j++;
            lps[i] = j;
            i++;
        }
        else
        {
            if(j == 0)
            {
                i++;
            }
            else
            {
                j = lps[j - 1];
            }
        }
    }

//    for(int i = 0; i<s.size(); i++)
//    {
//        out<<lps[i]<<" ";
//    }
//    out<<'\n';

    int ans = 0;
    for(int i = 0; i<s.size(); i++)
    {
        if(lps[i] == 0)
        {
            pref[i] = i + 1;
        }
        else
        {
            int len = i - lps[i] + 1;

            if(pref[lps[i - 1]] == len || len == lps[i - 1] + 1)
            {
                ans = max(ans, i + 1);
                pref[i] = len;
            }
            else
            {
                pref[i] = -1;
            }
        }
    }

    out<<ans<<'\n';
}

int main()
{
    in>>t;
    while(t--)
    {
        test();
    }
    return 0;
}