write the curresponding lines of code in first.go
// define variable a
// define variable b
// define variable c
// read three variable inputs from console
// use fmt.Scan to read
// use fmt.Println to write
// call add function
// print result here
// call average function from second.go
// without returing a variable get the result here
// modifying average functions deinfiniton is allowed
// print the average here
// call min_max function from second.go
// print min and max here
// create a variable radius and assign value of `b` to it
// call calculate_circle_area from third.go
execute the program by running the given command
go run *.go
Your task is to fix all the errors, make the code executable