1 #include <iostream>
 2 #include <cstdio>
 3 #include <cstring>
 4 using namespace std;
 5 int main()
 6 {
 7     int M1,M2;
 8     while(cin>>M1>>M2)
 9     {
10         int i;
11         int R1=0,R2=0,R3=0;
12         getchar();
13         char a[201];
14         gets(a);
15         for(i=0;a[i]!=‘\0‘;i++)
16         {
17             if(a[i]==‘A‘)
18                 R1=M1;
19             if(a[i]==‘B‘)
20                 R2=M2;
21             if(a[i]==‘C‘)
22                 M1=R3;
23             if(a[i]==‘D‘)
24                 M2=R3;
25             if(a[i]==‘E‘)
26                 R3=R1+R2;
27             if(a[i]==‘F‘)
28                 R3=R1-R2;
29         }
30         cout<<M1<<‘,‘<<M2<<endl;
31     }
32 }