Lost keys in South Mall in Cork city centre

I lost some keys this afternoon in South Mall, almost in front of the Imperial Hotel, on the other side of the street. There were around 3 or 4 keys with a yellow tag and "345" written on it. I think I lost them at around 5pm today 28 October 2015. If by any chance you found them, could you please call or text me at 0834740001. Thank you very much in advance!