C111123313121111121111331323133313331333132333133313331322331323132212111   >>    C11112331312111112111133132313331333133313233313331333132233132313221211   <<    C111123313121111121111331323133313331333132333133313331322331323132212113   >>      C111123313121111121111331323133313331333132333133313331322331323132212112   >>