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import java.io.*;
public class Average {
public static void main(String[] args) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int sum = 0, n = 0;
System.out.print("テストの点：");
int in;
while ((in = Integer.parseInt(br.readLine())) != 0) {
sum += in;
n++;
System.out.print("テストの点：");
}
br.close();
if (n > 0)
System.out.println("平均点：" + ((float)sum / n));
}
}