first blood

import java.util.List;
import java.util.Map;
import java.util.Scanner;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class Main {

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    while (scanner.hasNext()) {
        String input = scanner.next();
        String[] divided = input.split("[^0-9]");
        Map<Integer, List<String>> result = Stream.of(divided).collect(Collectors.groupingBy(String::length));
        List<Integer> keyList = result.keySet().stream().sorted(Integer::compareTo).collect(Collectors.toList());
        int maxLength = keyList.get(keyList.size() - 1);
        List<String> maxLengthStrings = result.get(maxLength);
        System.out.println(String.join("", maxLengthStrings) + "," + maxLength);
    }
}

}