Using C

Write a program to display your NAME on one line, your ADDRESS on the line below, your CITY, STATE, and ZIPCODE on the line below. Write a C program that calculates and displays the sum of the numbers from 1 to 100. The formula for calculating this sum is: sum = (n/2) (2*a + (n-1) d). Where, n is the number of items to be added, a is the lowest number, and d - is the difference between numbers. After verifying that the program is working correctly, modify it to display the sum of numbers from 100 to 1000.