C312322331333132212111133133313331333133312121111331323232222121   >>    C31232233133313221211113313331333133313331212111133132323222212   <<    C312322331333132212111133133313331333133312121111331323232222123   >>      C312322331333132212111133133313331333133312121111331323232222122   >>