nstall either Visual C++ (PC USERS) or X-CODE (MAC USERS)-you must write a program for each of the following program using the IDE. 1- Write a program that reads two integer numbers from the keyboard (use scanf). Add the two numbers and display the sum. 2- Write a program to read 4 numbers and find the average of the 4 numbers. 3- Write a program to read 2 numbers and display the largest of the two. You should use scanfto read the two numbers and use if statement to see which number is larger. Write a program to find the sum of the even numbers starting at 2 ending at 1000. You must use a while loop in your program. 4