$2\mathrm{.}7\mathrm{.}2$: Floating$-$point numbers $($double$).$

$547826\mathrm{.}3494542.$qx$3$zqy$7$

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One gallon equals $4$ quarts. Declare double variables volQuarts and volGallons. Then, read volQuarts from input and convert volQuarts into volGallons.

Ex: If the input is $48\mathrm{.}00,$ then the output is:

$12\mathrm{.}000$

double volQuarts