C1111133313331323223313331333133313231333132332131333131211113333312111   >>    C111113331333132322331333133313331323133313233213133313121111333331211   <<    C1111133313331323223313331333133313231333132332131333131211113333312113   >>      C1111133313331323223313331333133313231333132332131333131211113333312112   >>