#include<bits/stdc++.h>
using namespace std;
using ll = long long;
template<class T> using vt = vector<T>;
template<class T> using vvt = vector<vt<T>>;
template<class T> using ttt = tuple<T,T>;
using tii = tuple<int,int>;
using tiii = tuple<int,int,int>;
using vi = vector<int>;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define pb push_back
#define mt make_tuple
#define ALL(a) (a).begin(),(a).end()
#define FST first
#define SEC second
#define DEB cerr<<"!"<<endl
#define SHOW(a,b) cerr<<(a)<<" "<<(b)<<endl
const int INF = (INT_MAX/2);
const ll LLINF = (LLONG_MAX/2);
const double eps = 1e-8;
const ll DIV =1e9+7;
//const double PI = M_PI;
inline ll pow(ll x,ll n,ll m){ll r=1;while(n>0){if((n&1)==1)r=r*x%m;x=x*x%m;n>>=1;}return r%m;}
inline ll lcm(ll d1, ll d2){return d1 / __gcd(d1, d2) * d2;}
#define chmax(a,b) a=max(a,b)

/*Coding Space*/
int main(){
  ll a,b,c; cin >> a >> b >> c;
  char s; ll sn; cin >> s >> sn;
  char g; ll gn; cin >> g >> gn;
  ll ans = LLINF;
  if(s != 'B' && g != 'B'){
    if(s == g){
      ll manu = max(sn,gn);
      ll minu = min(sn,gn);
      if(s == 'C') swap(a,c);
      ans = min(manu - minu, a - manu + b + minu);
    }else{
      ans = min(sn+gn-1,ans);
      if(s == 'C') swap(a,c);
      ans = min(ans, a-sn+c-gn);
      ans = min(ans, a-sn+b+gn);
      ans = min(ans, sn+b+c-gn);
    }
  }else{
    if(s == g){
      ll manu = max(sn,gn); ll minu = min(sn,gn);
      ans = min(ans, manu - minu);
      ans = min(ans, minu + a + b - manu);
      ans = min(ans, minu + c + b - manu);
    }else{
      if(s != 'B') swap(sn,gn);
      if(g == 'C')  swap(a,c);
        ans = min(sn + gn-1,ans);
        ans = min(b-sn + a - gn,ans);
    }
  }
  cout << ans << endl;
}