Sum of two large numbers
Submissions: 21417   Accuracy:

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  Difficulty: Easy   Marks: 2

Given two non-negative numbers X and Y. The task is calculate the sum of X and Y. If the number of digits in sum (X+Y) are equal to the number of digits in X, then print sum, else print X.

Input:

The first line of input contains an integer T denoting the number of test cases. Then T test cases follow. Each test case contains two numbers X and Y.

Output:
For each test case, print the required answer.

Constraints:
1<=T<=500
1<=|Digits in X,Y|<=100

Example:
Input:
2

25 23
100 1000

Output:
48
100

EXPLANATION:

TestCase2: Since 100+1000=1100 which has 4 digits while 100(i.e X) has only 3 digits.Hence our answer will be 100 as per the prob statement.

** For More Input/Output Examples Use 'Expected Output' option **

Contributor: Arun Tyagi
Author: arun03


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