import java.util.ArrayList;
import java.util.Scanner;
import java.util.regex.Pattern;
public class Array{

    public static void main(String args[]){

        Scanner in = new Scanner(System.in);

        System.out.print("Enter Set: ");
        String inputSet = in.nextLine();

        System.out.print("Enter Subset: ");
        String subSet = in.nextLine();

        System.out.println();

        int setA[] = stringToInt(inputSet);
        int setB[] = stringToInt(subSet);

        System.out.print("set { ");

        for(int x : setA){
            for(int y : setB) {
                if(x == y)
                    System.out.print(x);
                if(x == y+1)
                    System.out.print(",");
            }
        }

        System.out.print(" } is subset of set { " +inputSet +" }");
    }

    public static int[] stringToInt(String items){
        Pattern pattern = null;
        pattern = pattern.compile(",");
        String item[] = pattern.split(items);

        int set[] = new int[item.length];

        int count = 0;
        for(String s : item) {
            set[count] = Integer.parseInt(s);
            count++;
        }

        return set;
    }
}