The following table shows the commission rate that will be paid to salesman according to their monthly sales.

Month Sales $($RM$)$

Commission Rate $(\%)$

Less than $10,000\mathrm{.}00$

$2\%$

$10,000\mathrm{.}0020,000\mathrm{.}00$

$3\%$

$20,000\mathrm{.}0130,000\mathrm{.}00$

$4\%$

More than $30,000\mathrm{.}00$

$5\%$

Write a complete program to calculate the commission and total salary for the salesman. The program should request a user to enter salesman name, basic salary, monthly sales and staff status either J$($Junior$)$ or S $($senior$).$ The total salary is based on their basic salary, commission and royalty $(10\%$ if junior, $20\%$ if senior$).$ Then, display the salesman name, basic salary, commission and total salary in two decimal places.