$3\mathrm{.}0\mathrm{.}3.$ Exercise $3$

Write a program the reads from the user a real number. Then your program displays $2$ choices to the user.

$1-$ get the square of input

$2-$ get square root of input

Based on the user's choice, the program finds the result and displays it$.$ Take care of wrong choice and error message in case the user wants square root of negative

number.