C1111133313331323223313331333133313231333132332131333132233131131221   >>    C111113331333132322331333133313331323133313233213133313223313113122   <<    C1111133313331323223313331333133313231333132332131333132233131131223   >>      C1111133313331323223313331333133313231333132332131333132233131131222   >>