C1111133313331323223313331333133313231333132332131333133313113213233121   >>    C111113331333132322331333133313331323133313233213133313331311321323312   <<    C1111133313331323223313331333133313231333132332131333133313113213233123   >>      C1111133313331323223313331333133313231333132332131333133313113213233122   >>