C1111133313331323223313331333133313231333132332131333133313231311331323321221   >>    C111113331333132322331333133313331323133313233213133313331323131133132332122   <<    C1111133313331323223313331333133313231333132332131333133313231311331323321223   >>      C1111133313331323223313331333133313231333132332131333133313231311331323321222   >>