SEQUENTIAL OUTPUT TRACING :
Tips About Number Of Steps :
1. If there are "n" words/digits in the input then at most "n-1" steps are required to rearrange it completely.
2. The number of words/digits arranged until the present step is greater than or equal to the present step number.
3. If the input is not given we cannot determine the previous step from the given step number or we cannot determine input from given step number.
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