Table I like the Most

Problem description. You are trying to study the trend in a large restaurant . The restuarant has three floor's each with capacity of 50 tables. The tables are numbered as three digit number, such that first digit indicates the floor number and the remaning two digits indicates the table number. e.g. 123 - indicates 1st floor, table no. 23. The customer is free to occupy any table on any floor.