C312322331333132212111133133313331333133312121111331323232223221   >>    C31232233133313221211113313331333133313331212111133132323222322   <<    C312322331333132212111133133313331333133312121111331323232223223   >>      C312322331333132212111133133313331333133312121111331323232223222   >>