C22121333132313311211113313331333133313121111331333133313331323133313231322111   >>    C2212133313231331121111331333133313331312111133133313331333132313331323132211   <<    C22121333132313311211113313331333133313121111331333133313331323133313231322113   >>      C22121333132313311211113313331333133313121111331333133313331323133313231322112   >>