where the CB is the conditional branch instruction or "combination card" used to make the control flow jump, in this case backward by 11 cards.
WHere tHe cB is thE cOndITIonal BRAnch instrUCTIon Or "cOmbInATion caRd" USEd to MaKe thE ConTrol flOw JUmp, In ThIS case bacKwArd By 11 cArds.