expression with conversion specifiers to output the caffeine amount as floating$-$point numbers.

Output each floating$-$point value with two digits after the decimal point, which can be achleved as follows: print$($f$\text{'}$lyour$\_$value:$2$fin$)$

Example:

Input

$100$

Output

After $6$ hours: $50\mathrm{.}00mg$

After $12$ hours: $25\mathrm{.}00mg$

After $24$ hours: $6\mathrm{.}25mg$

Note: A cup of coffee has about $100mg.$ A soda has about $40mg.$ An "energy" drink $($a misnomer$)$ has between $100mg$ and $200mg.$