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 |
2 |
1 |