C1111233131211111211113313331333133313232212111133131211331333133313331133121   >>    C111123313121111121111331333133313331323221211113313121133133313331333113312   <<    C1111233131211111211113313331333133313232212111133131211331333133313331133123   >>      C1111233131211111211113313331333133313232212111133131211331333133313331133122   >>