Write a program that reads a number between 0 and 999,999,999,999 from the user, where the user enters a comma in the input. Then print the number without a comma. You should assume the user will give you a number with the commas where they should be. Hint: Read the input as a string and loop over the string. Store the result in a long long variable. One way to do this is to convert to integer one character at a time.