C31231211113313121211113313331333132233132322331323133313231333112122231   >>    C3123121111331312121111331333133313223313232233132313331323133311212223   <<    C31231211113313121211113313331333132233132322331323133313231333112122233   >>      C31231211113313121211113313331333132233132322331323133313231333112122232   >>