How does this one work? I have an idea of it, I know that the increasing one goes up and the decreasing down, but I do still need help.

Answer:
fdnv,nb gn,dngb ,dgnb ,gdn bd, b,n b,ng b,g b, bd,b nb,bn , bg,n b
Step-by-step explanation:
dfvdfdffffffffffffffffffffffffffffffffffffffffff