C1111233131211111211113313331333133313232313331333133313331331121133131111231   >>    C111123313121111121111331333133313331323231333133313331333133112113313111123   <<    C1111233131211111211113313331333133313232313331333133313331331121133131111233   >>      C1111233131211111211113313331333133313232313331333133313331331121133131111232   >>