program prefix;
  const
    fin='prefix.in';
    fout='prefix.out';
var
  t,i,j,n,k,q,l,x,y,it,best:longint;
  p:array[0..1000000] of char;
  pi:array[0..1000000] of longint;
begin
  assign(input,fin);assign(output,fout);
    reset(input);rewrite(output);
    readln(t);
    for it:=1 to t do
      begin
        l:=0;
        while not(eoln(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 mod x=0) and (i<>x) then
              if i-pi[i]=x then
                if best<i then
                  best:=i;
          end;
        writeln(best);
      end;
  close(input);close(output);
end.