#include<iostream>
using namespace std;

int main ()
{
	float sum=0;
	float num;
	int counter=0;

	cin >> num;
	while(cin)
	{
		sum = sum + num;
		counter ++;
		cin >> num;
	}
	cout << "The average of the scores is " << sum/counter << endl;
	cout << "The number of students is " << counter << endl;
	return 0;
}