Given a string str your task is to complete the function printSpaceString which takes only one argument the string str and prints all possible strings that can be made by placing spaces (zero or one) in between them.
For eg . for the string abc all valid strings will be
a b c
The First line of input takes an integer T denoting the number of test cases . Then T test cases follow . Each line of test case contains a string str .
For each test case output the strings possible in a single line separated by a "$"
1<=length of string str <=100
abc$ab c$a bc$a b c$
Note:The Input/Ouput format and Example given are used for system's internal purpose, and should be used by a user for Expected Output only. As it is a function problem, hence a user should not read any input from stdin/console. The task is to complete the function specified, and not to write the full code.