import java.util.*;

public class checkarrsub

{

public static void main(String args[])

{

Scanner sc=new Scanner(System.in);

int n=sc.nextInt();

int arr[]=new int[n];

int n1=sc.nextInt();

int arr1[]=new int[n1];

//int n2=sc.nextInt();

//int arr2[]=new int[n2];

for(int i=0;i<n;i++)

{

arr[i]=sc.nextInt();

}

for(int i=0;i<n1;i++)

{

arr1[i]=sc.nextInt();

}

// for(int i=0;i<n2;i++)

// {

// arr2[i]=sc.nextInt();

// }

if(isSubset(arr, arr1, n, n1))

System.out.println("arr2 is a subset of arr1");

else

System.out.println("arr2 is not a subset of arr1");

}

static boolean isSubset(int arr[], int arr1[], int n, int n1)

{

int j=0;

for(int i=0;i<n1;i++)

{

for(j=0;j<n;j++)

{

if(arr1[i]==arr[j])

break;

}

if(j==n)

{

return false;

}

}

return true;

}

}