import java.util.*;
class Main{
    public static void main (String[] args) {
        Scanner sc=new Scanner(System.in);
        int [] arr1={5,4,6,7,3};
        int [] arr2={3,4,5,1};
        HashSet<Integer> set1=new HashSet<>();
        for(int i=0;i<arr1.length;i++){
            set1.add(arr1[i]);
        }
        boolean subset=true;
        for(int i=0;i<arr2.length;i++){
            if(!set1.contains(arr2[i])){
                subset=false;
                break;
            }
        }
        if(subset){
            System.out.println("subset");
        }else{
            System.out.println("not subset");
        }
    }
}