program diapazon;
var
   k, l, m, n : integer;
   ok1, ok2 : Boolean;
   i, j : integer;
begin
   writeln('...:::Diapazon:::...');
   write('k='); readln(k);
   write('l='); readln(l);
   write('m='); readln(m);
   i:=0;
   n:=k-1;
   ok1:=true;
   ok2:=false;
   while (n <= l) and ok1 do begin
      n:=k+1;

      while not ok2 do begin
      	i:=i+1;
   		if n mod 2 = 0  then
				n := n div 2
      	else
				n := n*3 + 1;
         if n = 1 then
			   ok2:=true
		   else
				ok2:=false;
      end;

	if i > m then
		ok1:=false
	else
		ok1:=true;
   end;

   if ok1 then
		writeln('yes', i)
	else
	   writeln('no', i);
   readln;
end.