C31231211113313121211113313331323133313231133133313331333132321133112121   >>    C3123121111331312121111331333132313331323113313331333133313232113311212   <<    C31231211113313121211113313331323133313231133133313331333132321133112123   >>      C31231211113313121211113313331323133313231133133313331333132321133112122   >>