C11111333133313232233133313331333133313231322321133131133131133132313332232111   >>    C1111133313331323223313331333133313331323132232113313113313113313231333223211   <<    C11111333133313232233133313331333133313231322321133131133131133132313332232113   >>      C11111333133313232233133313331333133313231322321133131133131133132313332232112   >>