#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<long long,long long> pll;
#define pb push_back
#define mp make_pair
#define rep(i,n) for(int i=0;i<(n);++i)
constexpr int mod=1000000007;
constexpr int mod1=998244353;
vector<int> dx={0,-1,0,1},dy={1,0,-1,0};
bool inside(int y,int x,int h,int w){
	if(y<h && y>=0 && x<w && x>=0) return true;
	return false;
}





int main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	ll x,y,z;cin >> x >> y >> z;
	string s0,s1;
	ll t0,t1;
	cin >> s0 >> t0 >> s1 >> t1;
	if(s0 == s1){
		if(s0 == "A"){
			if(t0 < t1) cout << min(abs(t0 - t1), min(t0 + y + x - t1, t0 + z + x - t1)) << endl;
			else cout << min(abs(t0 - t1), min(x - t0 + y + t1, x - t0 + z + t1)) << endl;
		}
		else if(s0 == "B"){
			if(t0 < t1) cout << min(abs(t0 - t1), min(t0 + x + y - t1, t0 + z + y - t1)) << endl;
			else cout << min(abs(t0 - t1), min(y - t0 + x + t1, y - t0 + z + t1)) << endl;
		}
		else{
			if(t0 < t1) cout << min(abs(t0 - t1), min(t0 + x + z - t1, t0 + y + z - t1)) << endl;
			else cout << min(abs(t0 - t1), min(z - t0 + y + t1, z - t0 + x + t1)) << endl;
		}
	}
	else{
		if(s0 == "A"){
			if(s1 == "B"){
				cout << min(t0 - 1 + t1, min(x - t0 + 1 + y - t1, min(t0 + z + y - t1, x - t0 + z + t1))) << endl;
			}
			else{
				cout << min(t0 - 1 + t1, min(x - t0 + 1 + z - t1, min(t0 + z + y - t1, x - t0 + y + t1))) << endl;
			}
		}
		else if(s0 == "B"){
			if(s1 == "A"){
				cout << min(t0 - 1 + t1, min(y - t0 + 1 + x - t1, min(t0 + z + x - t1, y - t0 + z + t1))) << endl;
			}
			else{
				cout << min(t0 - 1 + t1, min(y - t0 + 1 + z - t1, min(t0 + z + x - t1, y - t0 + x + t1))) << endl;
			}
		}
		else{
			if(s1 == "A"){
				cout << min(t0 - 1 + t1, min(z - t0 + 1 + x - t1, min(t0 + x + y - t1, z - t0 + x + t1))) << endl;
			}
			else{
				cout << min(t0 - 1 + t1, min(z - t0 + 1 + y - t1, min(t0 + x + y - t1, z - t0 + y + t1))) << endl;
			}
		}
	}
}