C1111121111331311211331333133313231333132212111113331333132233221   >>    C111112111133131121133133313331323133313221211111333133313223322   <<    C1111121111331311211331333133313231333132212111113331333132233223   >>      C1111121111331311211331333133313231333132212111113331333132233222   >>