Description
Patrick Star is trying to implement a basic calculator that supports addition, subtraction, multiplication, and division in the C program. Unfortunately, Patrick can't find the bug with his program for the addition operation, and he needs your help!
The problem is quite simple, calculate the sum of the given two numbers.
To represent the decimal number more clearly, we add commas (,) to the number to group the digits. e.g. 1,234,567. The commas will be added to the input two numbers. You will also need to output the answer with commas.
Please notice that the two numbers might be too large to fit in the int data type, and you may consider storing these two numbers in the other way.
Input
The input contains two lines, each line with a single number.
The digit of these two numbers (not including commas) is no more than 100.
Output
The output contains one line with one single number, the sum of the two numbers.