I had not anticipated that. Thank you, I'll label them differently to get clarity. If I choose U for Up, D for Down, E for equal, and then get for a volume peak a "UD" label, is it ok ?
Then, it would be :
AA -> UU
AB -> UD
AC -> UE
BA -> DU
BB -> DD
BC -> DE
CA -> EU
CB -> ED
CC -> EE...