C111123313121111121111331333133313331323221211113313231123313121211   >>    C11112331312111112111133133313331333132322121111331323112331312121   <<    C111123313121111121111331333133313331323221211113313231123313121213   >>      C111123313121111121111331333133313331323221211113313231123313121212   >>