C1111133313331323223313331333133313113313331133132313331323322111   >>    C111113331333132322331333133313331311331333113313231333132332211   <<    C1111133313331323223313331333133313113313331133132313331323322113   >>      C1111133313331323223313331333133313113313331133132313331323322112   >>