var f,g:text;
     a,b:array [1..2000001] of char;
     c:array[1..1000] of longint;
     i,j,m,n,k,p:longint;

 procedure citire;
   begin
     assign(f,'strmatch.in');
     reset(f);
     n:=0;
     m:=0;
     while not eoln(f) do begin
       m:=m+1;
       read(f,b[m]);
     end;
     readln(f);
     while not eoln(f) do begin
       n:=n+1;
       read(f,a[n]);
     end;
     close(f);
   end;

 procedure strmeci;
   begin
     i:=1;
     k:=1;
     repeat
       if a[i]=b[k] then k:=k+1 else begin k:=1; if a[i]=b[k] then k:=k+1; end;
       if k=m+1 then begin
         p:=p+1;
         c[p]:=i-m;
         k:=1;
         i:=i-m+1;
       end;
       i:=i+1;
     until i=n+1;
   end;

 procedure afisare;
   begin
     assign(g,'strmatch.out');
     rewrite(g);
       writeln(g,p);
       for i:=1 to p do write(g,c[i],' ');
     close(g);
   end;

 begin
   citire;
   strmeci;
   afisare;
 end.