C1111233131211111211113313331333133313232212111133133313332133131   >>    C111123313121111121111331333133313331323221211113313331333213313   <<    C1111233131211111211113313331333133313232212111133133313332133133   >>      C1111233131211111211113313331333133313232212111133133313332133132   >>