URI Online Judge | 1216

Getline One

By Neilor Tonin, URI Brazil

Timelimit: 1

Mangojata is learning Computer Programming. She finds everything very easy, very simple. She is going to make a small program that reads the names of your friends and the distance from his home to each of them. Therefore, she simply want to calculate what is the average distance between her house and her friends house (in meters). But Aristoclenes, a much more experienced programmer warned her that sometimes what seems simple can have some details, depending on the programming language used for implementation.

Input

The input contains several test cases. Each test case is composed by two lines. The first line contains the name of a friend of Mangojata. The second line contains an integer number that indicates the average distance between Mangojata's house and the house of a friend.

Output

The output must be a number with one digit after the decimal point (please use a double precision variable) indicating the average distance between Mangojata's house and the house of her friends, like the following example.

Sample Input Sample Output

Juca Pivara
410
Pedro Medario
12
Marta Mandua
60

160.7