Write an empty main function. Write a function called sum37n021) that accepts integers begin and end, and calculates the sum of integers from begin to end (inclusive) that are divisible by 3 or 7 and not by 2. Hint: Use a for loop to calculate the surn from begin to end inclusive (test it) and add code to calculate the sum of integers that are divisible by 3 or 7 and not by 2 (test again). Add a prototype for your surn37no2 function. Add code to your main function to test your code with (1,7), (3,9) and (5, 11). Output 10 19 16