Output the given strings according to the defined format.
The first line of input contains a positive integer t (t <= 20), which indicates the number test cases. For each case, the first line contains one positive integer n (n <= 100) indicating the number of strings. In the next n lines, one string is appeared per line. The length of each string is between 1 and 20.
The output format is as follows. First, each line has 4 strings. Second, each string occupies 20 spaces and right aligned.Print a blank line after each case.