import java.util.*;

public class Main {
    public static void main(String[] args) {
        int[] arr1 = {6, 7, 3, 2};
        int[] arr2 = {2, 3};
        int n1 = arr1.length, n2 = arr2.length;

        Set<Integer> st = new HashSet<>();
        for (int i = 0; i < n1; ++i) {
            st.add(arr1[i]);
        }

        for (int i = 0; i < n2; ++i) {
            if (!st.contains(arr2[i])) {
                System.out.println("Arr2 is not a subset of Arr1");
                return;
            }
        }
        System.out.println("Arr2 is a subset of Arr1");
    }
}