Computers store decimal numbers in binary form to conserve memory. Even though this allows a greater range of values, the largest integer value in many systems is 32,767 and long integers, the largest value is less than 2.2 billion.
Your task is to write a program that inputs pairs of numbers between 0 and 100 billion, inclusive. You should then add these numbers together and print the results.
Input: The input will only consist of digit characters ('0' . . '9'). No commas or other punctuation will be in the data. All values will be nonnegative. Since the integers may exceed any binary integer value allowed in the system, we shall read in the values as an apstring and convert each integer character to its corresponding integer digit and store it in an integer array.
Output: Your program should print out the results of the addition. Do not print any leading zeros before any answer. Put a loop in your program to run it four times.
Examples:
Input:  Output: 
124235 

7453 
The sum is: 131688 
325235 

0 
The sum is: 325235 
23523 

100000000000 
The sum is: 100000023523 
326346124 

76434124235 
The sum is: 76760470359 
Use the declarations at right  const NUM_DIG = 13; // 100 billion + 1 digit 
to store your digits.  apvector 
To convert digit characters to  int asciiToInt (char ch) 
digit integers you may use  { 
this function.  return (ch  '0'); 
} 
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