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

#define int long long

vector<pair<int, int>> vec[10];

signed main(){
    int x, y, z;
    cin >> x >> y >> z;
    int memo[3] = {x, y, z};

    pair<char, int> s, t;
    cin >> s.first >> s.second;
    cin >> t.first >> t.second;


    int si = s.first-'A';
    int ti = t.first-'A';
    int vi;
    if(si != 1 && ti != 1) vi = 1;
    if(si != 2 && ti != 2) vi = 2;
    if(si != 0 && ti != 0) vi = 0;

    int a1 = s.second-1 + t.second-1 + 1;
    int a2 = memo[si] - s.second  + memo[ti] - t.second + 1;
    int a3 = s.second-1 + 1 + memo[vi] + memo[ti]-t.second;
    int a4 = memo[si]-s.second + 1 + memo[vi] + t.second-1;


    if(s.first != t.first){
        cout << min(a1, min(a2, min(a3, a4))) << endl;
    }else{
        int x, y;
        x = min(s.second, t.second);
        y = max(s.second, t.second);
        int a5 = y-x;
        int a6, a7, a8;
        a6 = a7 = a8 = LLONG_MAX;
        if(si != 0)  a6 = memo[si]-y+x-1+1+memo[0];
        if(si != 1)  a7 = memo[si]-y+x-1+1+memo[1];
        if(si != 2)  a8 = memo[si]-y+x-1+1+memo[2];

        cout << min(a5, min(a6, min(a7, a8))) << endl;

    }





    return 0;
}