C31231211113313121211113313331333132233132322331323133313231333211232221   >>    C3123121111331312121111331333133313223313232233132313331323133321123222   <<    C31231211113313121211113313331333132233132322331323133313231333211232223   >>      C31231211113313121211113313331333132233132322331323133313231333211232222   >>