C31231211113313121211113313331323133313231133133313331322121123311   >>    C3123121111331312121111331333132313331323113313331333132212112331   <<    C31231211113313121211113313331323133313231133133313331322121123313   >>      C31231211113313121211113313331323133313231133133313331322121123312   >>