#include<bits/stdc++.h>
using namespace std;

int main()
{
	int number;
	cin>>number;
	int number2;
	cin>>number2;
	vector<int> arr1;
	vector<int> arr2;
	for(int i=0;i<number;i++)
	{
		int s;cin>>s;
		arr1.push_back(s);
	}
	for(int i=0;i<number2;i++)
	{
		int s;cin>>s;
		arr2.push_back(s);
	}
	sort(arr1.begin(),arr1.end());
	sort(arr2.begin(),arr2.end());
	int flag=0;
	int testnumber=0;
	int i=0;
	int j=0;
	while(true)
	{
		if(i==number || j==number2)
		{
			break;
		}
		if(arr1[i]==arr2[j])
		{
			j++;
		}
		i++;
	}
	if(j==number2)
	{
		cout<<"Yes";
	}
	else
	{
		cout<<"No";
	}
	return 0;
}