#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
signed main() { 
  ios::sync_with_stdio(false); cin.tie(0);
  long long x, y, z;
  cin >> x >> y >> z;
  char s[2];
  long long a[2], b[2];
  for (int i = 0; i < 2; i++) {
    cin >> s[i] >> a[i];
    if (s[i] == 'A') b[i] = x - a[i];
    if (s[i] == 'B') b[i] = y - a[i];
    if (s[i] == 'C') b[i] = z - a[i];
    a[i]--;
  }
  long long ans = 1LL << 60;
  if (s[0] == s[1]) ans = abs(a[0] - a[1]);
  ans = min(ans, a[0] + a[1] + 1);
  ans = min(ans, b[0] + b[1] + 1);
  ans = min(ans, a[0] + b[1] + 1 + min({x, y, z}));
  ans = min(ans, a[1] + b[0] + 1 + min({x, y, z}));
  cout << ans << endl;
  return 0;
}