C11111333133313232233133313331333133313231322321111331311331311111321   >>    C1111133313331323223313331333133313331323132232111133131133131111132   <<    C11111333133313232233133313331333133313231322321111331311331311111323   >>      C11111333133313232233133313331333133313231322321111331311331311111322   >>