#include <bits/stdc++.h>
#define ADD(a, b) a = (a + ll(b)) % mod
#define MUL(a, b) a = (a * ll(b)) % mod
#define MAX(a, b) a = max(a, b)
#define MIN(a, b) a = min(a, b)
#define rep(i, a, b) for(int i = int(a); i < int(b); i++)
#define rer(i, a, b) for(int i = int(a) - 1; i >= int(b); i--)
#define all(a) (a).begin(), (a).end()
#define sz(v) (int)(v).size()
#define pb push_back
#define sec second
#define fst first
#define debug(fmt, ...) Debug(__LINE__, ":", fmt, ##__VA_ARGS__)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef pair<int, pi> ppi;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<vl> mat;
typedef complex<double> comp;
void Debug() {cerr << '\n'; }
template<class FIRST, class... REST>void Debug(FIRST arg, REST... rest){
	cerr<<arg<<" ";Debug(rest...);}
template<class T>ostream& operator<<(ostream& out,const vector<T>& v) {
	out<<"[";if(!v.empty()){rep(i,0,sz(v)-1)out<<v[i]<<", ";out<<v.back();}out<<"]";return out;}
template<class S, class T>ostream& operator<<(ostream& out,const pair<S, T>& v){
	out<<"("<<v.first<<", "<<v.second<<")";return out;}
const int MAX_N = 500010;
const int MAX_V = 100010;
const double eps = 1e-6;
const ll mod = 1000000007;
const int inf = 1 << 30;
const ll linf = 1LL << 60;
const double PI = 3.14159265358979323846;
mt19937 rng; //use it by rng() % mod, shuffle(all(vec), rng)
///////////////////////////////////////////////////////////////////////////////////////////////////

ll X, Y, Z;
vector<pl> G[MAX_N];
ll D[MAX_N];

void add_edge(int a, int b, ll c) {
	// debug(a, b, c);
	G[a].pb(pl(b, c));
	G[b].pb(pl(a, c));
}

void solve() {
	cin >> X >> Y >> Z;
	add_edge(0, 1, X - 1);
	add_edge(2, 3, Y - 1);
	add_edge(4, 5, Z - 1);
	add_edge(0, 4, 1);
	add_edge(0, 2, 1);
	add_edge(2, 4, 1);
	add_edge(1, 3, 1);
	add_edge(1, 5, 1);
	add_edge(3, 5, 1);
	vector<pl> vec;
	rep(i, 6, 8) {
		char c; ll num = 0;
		int at; ll lim;
		cin >> c >> num;
		if(c == 'A') {
			at = 0; lim = X;
		}
		else if(c == 'B') {
			at = 2; lim = Y;
		}
		else {
			at = 4; lim = Z;
		}
		add_edge(at, i, num - 1);
		add_edge(i, at + 1, lim - num);
		vec.pb(pl(at, num));
	}
	if(vec[0].fst == vec[1].fst) {
		add_edge(6, 7, abs(vec[0].sec - vec[1].sec));
	}
	rep(i, 0, 8) D[i] = linf;
	D[6] = 0;
	priority_queue<pl, vector<pl>, greater<pl>> que;

	que.push(pl(0, 6));
	while(!que.empty()) {
		pl p = que.top(); que.pop();
		ll c = p.fst; int v = p.sec;
		if(D[v] < c) continue;
		rep(i, 0, sz(G[v])) {
			int n = G[v][i].fst;
			ll d = G[v][i].sec;
			if(D[n] > c + d) {
				D[n] = c + d;
				que.push(pl(c + d, n));
			}
		}
	}
	cout << D[7] << "\n";
}

uint32_t rd() {
	uint32_t res;
#ifdef __MINGW32__
	asm volatile("rdrand %0" :"=a"(res) ::"cc");
#else
	res = std::random_device()();
#endif
	return res;
}

int main() {
#ifndef LOCAL
	ios::sync_with_stdio(false);
    cin.tie(0);
#endif
    cout << fixed;
	cout.precision(20);
    cerr << fixed;
	cerr.precision(6);
	rng.seed(rd());
#ifdef LOCAL
	//freopen("in.txt", "wt", stdout); //for tester
	if(!freopen("in.txt", "rt", stdin)) return 1;
#endif	
	solve();
    cerr << "Time: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n";
	return 0;
}