Program p1;
  var s:string;
  i,k,k1:longint;
  f,g:text;
 begin
 assign(f,'text.in');reset(f);
 assign(g,'text.out');rewrite(g);
 read(f,s);
 for i:=1 to length(s) do
        if s[i] in ['a'..'z','A'..'Z'] then inc(k) else
           if s[i]=' ' then inc(k1);
           writeln(g,trunc(k/(k1+1)));
 close(g);
 end.