C1111121111331311211331333133313231333132212111113331333133313331323112221   >>    C111112111133131121133133313331323133313221211111333133313331333132311222   <<    C1111121111331311211331333133313231333132212111113331333133313331323112223   >>      C1111121111331311211331333133313231333132212111113331333133313331323112222   >>