C11111333133313232233133313331333132313331323321313331311331333131122112322321   >>    C1111133313331323223313331333133313231333132332131333131133133313112211232232   <<    C11111333133313232233133313331333132313331323321313331311331333131122112322323   >>      C11111333133313232233133313331333132313331323321313331311331333131122112322322   >>