C1111133313331323223313331333133313231333132332131333132233131121133112311   >>    C111113331333132322331333133313331323133313233213133313223313112113311231   <<    C1111133313331323223313331333133313231333132332131333132233131121133112313   >>      C1111133313331323223313331333133313231333132332131333132233131121133112312   >>