import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;


public class Main {

    public static void main(String[] args) throws Exception {
        BufferedReader r = new BufferedReader(new InputStreamReader(System.in));
        PrintWriter w = new PrintWriter(System.out);

        String[] inputs = r.readLine().split("[,:}\"]");

        long totalDelta = 0;
        int totalCM = 0;

        for (int i = 0; i < inputs.length; i++) {
        	//System.out.println(inputs[i]);

        	if (inputs[i].equals("oldRating")) {
        		int oldRating = Integer.parseInt(inputs[i + 2]);
        		int newRating = Integer.parseInt(inputs[i + 6]);

        		if (1900 <= oldRating && oldRating < 2100) {
        			totalCM++;
        			totalDelta += newRating - oldRating;

        			System.out.println(oldRating + " -> " + newRating);
        		}
        	}
        }

        System.out.println("Total delta for CM is " + totalDelta);
        System.out.println("Total CM count is " + totalCM);
        System.out.println("Average delta is " + (1.0 * totalDelta) / totalCM);
    }

}