Complete the code to output $"16$ cups $=1$ gallon". On the next line, output the value of volCups to two digits after the decimal point, followed by $"$ cups $=",$ and then the value of volGals to four digits after the decimal point, and lastly $"$ gallons". End with a newline.

Ex: If the input is $80\mathrm{.}00,$ then the output is:

$16$ cups $=1$ gallon

$80\mathrm{.}00$ cups $=5\mathrm{.}0000$ gallons