C22121333132313311211113313331333133313121111331333133313331323133313331123111   >>    C2212133313231331121111331333133313331312111133133313331333132313331333112311   <<    C22121333132313311211113313331333133313121111331333133313331323133313331123113   >>      C22121333132313311211113313331333133313121111331333133313331323133313331123112   >>