By Rujia Liu, Tsinghua University China
You have a robot standing on the origin of x axis. The robot will be given some instructions. Your task is to predict its position after executing all the instructions.
The first line contains the number of test cases T (T <= 100). Each test case begins with an integer n ( 1 <= n <= 100), the number of instructions. Each of the following n lines contains an instruction.
For each test case, print the final position of the robot. Note that after processing each test case, the robot should be reset to the origin.
|Sample Input||Sample Output|