Quoted from Wakky:Sounds confusing dont understand any of what you have posted ??
As my Calc II teacher always said, it's obvious to the most casual observer.
Try this way, just remember the number is for how many Ls:
123 means Both, L, R, LL, R, LLL, RR
451 means Both, LLLL, R, LLLLL, R, L, RR
All that changes is the number of Ls.