C31231211113313121211113313331323133313331333133311233132322123231   >>    C3123121111331312121111331333132313331333133313331123313232212323   <<    C31231211113313121211113313331323133313331333133311233132322123233   >>      C31231211113313121211113313331323133313331333133311233132322123232   >>