Question $2(30\%)$

Write your codes inside Q$2$ function block that calculates the total charge under a mobile data plan Plan B according to the table below.

The program should accept the following user inputs in order. Note that $N{O}_{?}$ prompt messages are needed.

Local data usage $($in GB$)($a double value$)$

Roaming data usage $($in GB$)($a double value$)$

Local call time $($in minutes$)($an integer value$)$

Roaming call time $($in minutes$)($an integer value$)$

After receiving the above inputs, the program shows the total charge calculated in two decimal places.

In the calculation, if the total data usage $($local $+$ roaming$)$ exceeds $10GB,$ there is a $10\%$ discount on the total data cost. If the local call time exceeds $1000$ minutes, there is a $5\%$ discount on the total call cost.

$\backslash$table$[[$Items$,$Charge for Plan B $($per GB or per min$)],[$Local Data $($up to $2$GB$),$$$18],[$Local Data $(2$GB to $5$ GB $),$$$13\mathrm{.}5$