user$\_$num is read from input as a floating$-$point value. Using format specifications, output the following:

user$\_$num in fixed$-$point notation with two places of precision

user$\_$num in exponent notation

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Ex: If the input is $18,$ then the output is:

$18\mathrm{.}00$

$1\mathrm{.}800000$e$+01$