import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class RemoveDuplicates {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        // 1st
        System.out.println(Arrays
                .stream(reader.readLine().split(","))
                .distinct()
                .collect(Collectors.joining(",")));

        // 2nd
        String.join(",", Stream
                .of(reader.readLine().split(","))
                .collect(Collectors.toSet()))
                .lines()
                .forEach(System.out::println);
    }
}