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

#define FOR(i, a, b) for(int i = (a); i < (b); i++)
#define RFOR(i, b, a) for(int i = (b) - 1; i >= (a); i--)
#define SZ(a) (int)a.size()
#define ALL(a) a.begin(), a.end()
#define PB push_back
#define MP make_pair
#define F first
#define S second

typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PII;
typedef double db;


int main()
{
	ios::sync_with_stdio(0); 
	cin.tie(0);
	cout << fixed << setprecision(15);
	
	vector<PII> ans;
	
	int a0, a1;
	cin >> a0 >> a1;
	
	string s;
	cin >> s;
	
	FOR(b0, 1, 10)
	{
		if(b0 == a0 || b0 == a1)
			continue;
		FOR(b1, b0 + 1, 10)
		{
			if(b1 == a0 || b1 == a1)
				continue;
			
			vector<pair<int, char>> vals = {{a0, 'A'}, {a1, 'A'}, {b0, 'B'}, {b1, 'B'}};
			sort(ALL(vals));
			bool ok = 1;
			FOR(i, 0, 4)
				if(vals[i].S != s[i])
					ok = 0;
				
			if(ok)
				ans.PB(MP(b0, b1));
		}
	}
	if(SZ(ans) != 1)
		cout << "-1\n";
	else
		cout << ans[0].F << " " << ans[0].S << "\n";
	
	
	
	



	
	return 0;
}