Student GPA

Create a Student class that stores a student's name and an array of grades. The class should have a method getGPA() that computes the average of all grades.

Read the student's name and grades from stdin, create a Student object, and print the average rounded to 2 decimal places.

Input

• Line 1: the student's name (a single word)
• Line 2: the number of grades N (1 <= N <= 2·10^4)
• The next N lines: one grade per line (integer, 0 <= grade <= 100)

Output

A single line: the average as a decimal with exactly 2 decimal places.

Examples

Input:
Alice
4
90
85
92
88

Output:
88.75

Input:
Bob
3
100
100
100

Output:
100.00

Input:
Carol
1
95

Output:
95.00

A single grade: the average is just that grade, still formatted to 2 decimals.