A polynomial is given by $p=5\mathrm{.}5s^2-6\mathrm{.}5s-8\mathrm{.}0.$ Read $s$ from input as a float and compute $p$ using the polynomial.

Ex: If the input is $1\mathrm{.}6,$ then the output is:

$-4\mathrm{.}320$

Note: $s^2$ can be computed using $*.$

$1$

$2\text{'}\text{'}\text{'}$ Your code goes here

$3$

$4pr{\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}(f^{\text{'}}\{p$:$\mathrm{.}3f{\}}^{\text{'}})$