C111123313331323113313331333133313121111131121133133313132233131   >>    C11112331333132311331333133313331312111113112113313331313223313   <<    C111123313331323113313331333133313121111131121133133313132233133   >>      C111123313331323113313331333133313121111131121133133313132233132   >>