C31231211113313121211113313331323133313331322331323223313121121   >>    C3123121111331312121111331333132313331333132233132322331312112   <<    C31231211113313121211113313331323133313331322331323223313121123   >>      C31231211113313121211113313331323133313331322331323223313121122   >>