Hattrick

In a cricket match, the retiring of three batsmen with **three consecutive** balls is termed as a *hattrick*. Let $A, B, C, D, E,$ and $F$ denote the batsman's score for each ball in order in an [over](https://en.wikipedia.org/wiki/Over_(cricket)). Each of these variables can be an integer less than equal to $6$ denoting the runs scored by the batsman, or `W` denoting a wicket. Find whether th