The mean of three numbers, num$1,$ num$2,$ and num$3,$ is given by mean $))/(3\mathrm{.}0(um3.$ Read double variables num$1,$ num$2,$ and num$3$ from input, respectively. Then, compute meanOfThree using the formula. Finally, output "Mean is $"$ followed by the value of meanOfThree to four digits after the decimal point. End with a newline.

Ex$.$ If the input is $30\mathrm{.}033\mathrm{.}0,21\mathrm{.}0,$ then the output is:

Mean is $28\mathrm{.}0000$

#include $1+2+$