C1111233131211111211113313331333133313331322322331323133313113322121   >>    C111123313121111121111331333133313331333132232233132313331311332212   <<    C1111233131211111211113313331333133313331322322331323133313113322123   >>      C1111233131211111211113313331333133313331322322331323133313113322122   >>