RT

#include <bits/stdc++.h>
using namespace std;
// #define int long long
int n,m,a,b,cnt;
unordered_map<int,bool> mp;
signed main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin>>n;
	for(int i=1;i<=n;i++) cin>>a,mp[a]=1;
	cin>>m;
	for(int i=1;i<=n;i++) cin>>b,cnt+=mp[b];
	if(cnt==n&&cnt==m) cout<<"A equals B";
	else if(cnt==n) cout<<"A is a proper subset of B";
	else if(cnt==m) cout<<"B is a proper subset of A";
	else if(!cnt) cout<<"A and B are disjoint";
	else cout<"I'm confused!";
	return 0;
}