C31231211113313121211113313331333132233132322331323133313231333112132311   >>    C3123121111331312121111331333133313223313232233132313331323133311213231   <<    C31231211113313121211113313331333132233132322331323133313231333112132313   >>      C31231211113313121211113313331333132233132322331323133313231333112132312   >>