function foo(L, K: real): real;
function bar(Len: real): real;
begin
Result := 0;
if Len >= L then Result += 1
else Result := 1 + bar(Len + K)
end;
begin
Result := bar(K)
end;
begin
var L := ReadlnReal() * 10;
var K := ReadlnReal();
Print(foo(L, K))
end.