C111123313121111121111331333133313331323221211113313331333211232212331   >>    C11112331312111112111133133313331333132322121111331333133321123221233   <<    C111123313121111121111331333133313331323221211113313331333211232212333   >>      C111123313121111121111331333133313331323221211113313331333211232212332   >>