program prefix;
  const
    fin='prefix.in';
    fout='prefix.out';
type
  sir=array[1..1000010] of char;
  psir=^sir;
  lsir=array[0..1000010] of longint;
  plsir=^lsir;
var
  t,i,j,n,k,q,l,x,y,it,best:longint;
  p:psir;
  pi:plsir;

begin
  assign(input,fin);assign(output,fout);
    reset(input);rewrite(output);
    readln(t);
    new(p);new(pi);
    for it:=1 to t do
      begin
        l:=0;
        while not(seekeoln(input)) do
          begin
            inc(l);
            read(p^[l]);
          end;
        readln;
        k:=0;
        pi^[1]:=0;
        for q:=2 to l do
          begin
            while (k>0) and (p^[k+1]<>p^[q]) do
              k:=pi^[k];
            if p^[k+1]=p^[q] then
              inc(k);
            pi^[q]:=k;
          end;
        best:=0;
        for i:=2 to l do
          begin
            x:=pi^[i]-pi^[pi^[i]];
            if x<>0 then
            if (((i=(i div x)*x) and (i<>x))and(i-pi^[i]=x))and(best<i) then
              best:=i;
          end;
        writeln(best);
      end;
  close(input);close(output);
end.