pleas do it in c language not c++

Write a program that gets three integers and the user's choice. If the user's choice is 1, the program should display how many of them fall in [-10, 10]. If the user choice is 2, the program should display the absolute sum of all of them. If the user choice is any other value, the program should display the message "Invalid Choice!" Note: the program should not use fabs() of the math.h or abs() of the stdlib.h Program output samples are shown below Enter Three Integers: 20 1-3 Enter Your Choice (1 or 2): 1 The number of values between [-10, 10]: 2 Enter Three Integers: 3 3-5 Enter Your Choice (1 or 2): 2 -335 5 Enter Three Integers: 90 3 Enter Your Choice (1 or 2): 3 Invalid Choice