Write a C$++$ program that does the following:

$*1-$ Declare two double variables num$1$ and num$2$

$*2-$ declare a character variable op to contain the characters $\text{'}+\text{'},\text{'}-\text{'},\text{'}/\text{'},$ or $\text{'}*\text{'}/$

Ask the user for an expression in the form $23\mathrm{.}4*5\mathrm{.}3($A number followed by

the operation$/$character followed by another number.

If the input was $23\mathrm{.}4*5\mathrm{.}3$ then num$1$ will be $23\mathrm{.}4,$ op $=\text{'}*\text{'},$ num$2=5\mathrm{.}3$

if the charater us $+,$ then perform an addition and display the result

else if the charater us $-,$ then perform a subtraction and display the result

ad so on$....$ for $*$ and $/$

if the character is none of the above then display the message "Invalid operation".