Write a program to test the functions described in exercises 23 and _26_ of this chapter. instructions for exercise 23 and exercise 26 have been posted below for your convenience. exercise 23 write the definition of a void function that takes as input an integer and outputs two times the number if it is even; otherwise it outputs five times the number. exercise 26 write the definition of a void function that takes as input two integer values, say n and m. the function returns the sum and average of all the numbers between n and m (inclusive).test caseincompleteinput / output test 1test case1input258output results4266.5test caseincompleteinput / output test 2test case 2input51020output results2516515