$2\mathrm{.}30$ LAB: Convert to dollars

Given three input values representing counts of nickels, dimes, and quarters, output the total amount as dollars and cents.

Output each floating$-$point value with two digits after the decimal point using the following statement:

printf$("$Amount: $$\%o.\mathrm{.}21\frac{f}{?}$

$,$ dollars$)$;

Ex: If the input is:

$314$

where $3$ is the number of nickels $($at $$0\mathrm{.}0$