Zack is learning Operating Systems. He came across the following commands:
cd - changes the location of working directory, and
pwd - display the present working directory

If the cd parameter contains "..", that means you have to step back one directory. The path of directories is separated by slashes "/". The default root directory is "/". Your task is to print the current working directory, for each "pwd" command.

Input Format

First line of input contains T - number of test cases. For each test case, first line of input contains N - number of commands. Its followed by N lines, each containing either a "cd <path>" or a "pwd" command. Each "cd" command will end with a "/".

Constraints

1 <= T <= 100
1 <= N <= 100
1 <= len(path) <= 200
path[i] ∈ ('a' - 'z', '.', '/')

Output Format

For each "pwd" command, print the present working directory, separated by new line. Print newline between output of test cases.

Sample Input 0

2
8
pwd
cd /Users/Guest/
pwd
cd ../Admin/Desktop/
pwd
cd /Users/Guest/Desktop/
cd os/labs/
pwd
6
cd /sem/networks/labs/
pwd
cd ../../os/labs/../slides/
pwd
cd /
pwd


Sample Output 0
/
/Users/Guest/
/Users/Admin/Desktop/
/Users/Guest/Desktop/os/labs/

/sem/networks/labs/
/sem/os/slides/
/