#include <bits/stdc++.h>
using namespace std;
#define modulo 1000000007
#define mod(mod_x) ((((long long)mod_x)+modulo)%modulo)
#define Inf 100000000000


int main(){
	long long A,B,C;
	cin>>A>>B>>C;
	
	char s1,s2;
	long long t1,t2;
	cin>>s1>>t1;
	cin>>s2>>t2;
	long long ans = Inf;
	if(s1==s2){
		if(t1>t2)swap(t1,t2);
		ans = abs(t1-t2);
		if(s1=='A'){
			ans = min(ans,min(B+1,C+1)+t1-1+(A-t2));
		}
		else if(s1=='B'){
			ans = min(ans,min(C+1,A+1)+t1-1+(B-t2));
		}
		else{
			ans = min(ans,min(A+1,B+1)+t1-1+(C-t2));
		}
	}
	else{
		if(s1>s2){
			swap(s1,s2);
			swap(t1,t2);
		}
		ans = t1+t2-1;
		if(s1=='A'){
			if(s2=='B'){
				ans = min(ans,(A-t1)+(B-t2)+1);
				ans = min(ans,t1-1 + (B-t2) + C+1);
				ans = min(ans,(A-t1) + t2-1 + C+1);
			}
			else{
				ans = min(ans,A-t1+C-t2+1);
				ans = min(ans,t1-1+(C-t2)+B+1);
				ans = min(ans,A-t1+t2-1+B+1);
			}
			
		}
		else{
			ans = min(ans,B-t1+C-t2+1);
			ans = min(ans,t1-1+C-t2+A+1);
			ans = min(ans,B-t1+t2-1+A+1);
		}
	}
	
	cout<<ans<<endl;
	
	return 0;
}