题目描述
Read problems statements in Mandarin chinese, Russian and Vietnamese as well.
Trans bought a calculator at creatnx's store. Unfortunately, it is fake. It has many bugs. One of them is adding two numbers without carrying. Example expression: 12 + 9 will have result 11 in his calculator. Given an expression in the form a + b, please output result from that calculator.
------ Input ------
The first line contains an integer T denote the number of test cases. Each test case contains two integers a, b in a single line.
------ Output ------
Each test case, print answer in a single line.
------ Constraints ------
$1 ≤ T ≤ 100$
$1 ≤ a, b ≤ 10^{9}$
Subtasks:
$Subtask #1 (30 points): 1 ≤ a, b ≤ 9$
$Subtask #2 (70 points): original constrains$
----- Sample Input 1 ------
2
12 9
25 25
----- Sample Output 1 ------
11
40
输入格式
见题面
输出格式
见题面