Problem C
Pervasive Heart Monitor

You have been hired by a fitness center. You are helping to develop a system to monitor customer heart rate during exercise. While the customer stays in the gym, their heart rate is recorded at 10-minute intervals. When they leave, they can get a report of their average heart rate for the entire visit. Your job is to generate this report.

Input

Input consists of a series of lines, one for each customer. Customers can scan their ID card when they enter or when they leave, so each line has a customer name either at the start or at the end. Other than the customer name, each line contains a sequence of real values in the range $[0, 1000]$ with at most 2 digits past the decimal representing heart rate measurements throughout the workout. Customer names consists of one of more space-separated words, each consisting of letters A - Z (lower or uppercase). Each customer only appears once in the input. There are at most 25 space-separated tokens (names or numbers) per line. Each token has at most 10 characters.

Output

For each customer in the order given in the input, print a line with the average of all their heart rate readings, followed by the name. The average heart rate should be accurate within 0.01 beats per minute.

Lisa Marie Presley 90.2 104.3 110.1 118.7 122.3
72.2 74 79.5 82.1 88.3 87.4 87.2 88.1 83.8 Bono

109.120000 Lisa Marie Presley
82.511111 Bono