C11111333133313232233133313331333132313331323321313331311331312111133132333221   >>    C1111133313331323223313331333133313231333132332131333131133131211113313233322   <<    C11111333133313232233133313331333132313331323321313331311331312111133132333223   >>      C11111333133313232233133313331333132313331323321313331311331312111133132333222   >>