C31231211113313121211113313331323133313231133133313331323233231322311   >>    C3123121111331312121111331333132313331323113313331333132323323132231   <<    C31231211113313121211113313331323133313231133133313331323233231322313   >>      C31231211113313121211113313331323133313231133133313331323233231322312   >>