C1111133313331323223313331333133313231333132332131333132333132313133121   >>    C111113331333132322331333133313331323133313233213133313233313231313312   <<    C1111133313331323223313331333133313231333132332131333132333132313133123   >>      C1111133313331323223313331333133313231333132332131333132333132313133122   >>