C11111333133313232233133313331333132313331323321313331333131323133313231321121   >>    C1111133313331323223313331333133313231333132332131333133313132313331323132112   <<    C11111333133313232233133313331333132313331323321313331333131323133313231321123   >>      C11111333133313232233133313331333132313331323321313331333131323133313231321122   >>