C1111233131211111211113313331333133313331322322331312111133132213331312321   >>    C111123313121111121111331333133313331333132232233131211113313221333131232   <<    C1111233131211111211113313331333133313331322322331312111133132213331312323   >>      C1111233131211111211113313331333133313331322322331312111133132213331312322   >>