C111113331333132322331333133313331333132313331333131133133312111122221121   >>    C11111333133313232233133313331333133313231333133313113313331211112222112   <<    C111113331333132322331333133313331333132313331333131133133312111122221123   >>      C111113331333132322331333133313331333132313331333131133133312111122221122   >>