Reversed number is a number written in arabic numerals but the order of digits is reversed. The first digit becomes last and vice versa. Note that all the leading zeros are omitted. That means if the number ends with a zero, the zero is lost by reversing (e.g. 1200 gives 21). Also note that the reversed number never has any trailing zeros.
Your task is to add two reversed numbers and output their reversed sum.
The input consists of N cases (equal to about 10000). The first line of the input contains only positive integer N. Then follow the cases. Each case consists of exactly one line with two positive integers separated by space. These are the reversed numbers you are to add.
For each case, print exactly one line containing only one integer - the reversed sum of two reversed numbers. Omit any leading zeros in the output.
Explanation: For the first sample input, 3 refers to the number of tests. In the first test 24 and 1 are the two numbers ,the reverse of 24 is 42 and for 1 it is 1. Hence the sum of 42 and 1 is 43. The reverse of 43 is 34.