C1111233131211111211113313331333133313232212111133131133133313231331131   >>    C111123313121111121111331333133313331323221211113313113313331323133113   <<    C1111233131211111211113313331333133313232212111133131133133313231331133   >>      C1111233131211111211113313331333133313232212111133131133133313231331132   >>