1 #include<cstdio>
 2 #include<cstring>
 3 #include<stdlib.h>
 4 #include<algorithm>
 5 using namespace std;
 6 __int64 A(int m,int n)
 7 {
 8     if(n==0)   return A(m-1,1);
 9     else if(m==0)  return n+1;
10     else if(m==1)  return n+2;
11     else if(m==2)   return 2*n+3;
12     else if(m==3)   return 2*A(3,n-1)+3;
13 }
14 int main()
15 {
16     int m,n;
17     while(scanf("%d %d",&m,&n)!=EOF)
18     {
19         printf("%I64d\n",A(m,n));
20     }
21     return 0;
22 }

 1 #include<cstdio>
 2 #include<cstring>
 3 #include<stdlib.h>
 4 #include<algorithm>
 5 using namespace std;
 6 __int64 A(int m,int n)
 7 {
 8      if(m==0)  return n+1;
 9      if(m==1)  return n+2;
10      if(m==2)  return 2*n+3;
11      if(m==3)  return (1<<(n+3))-3;
12 }
13 int main()
14 {
15     int m,n;
16     while(scanf("%d %d",&m,&n)!=EOF)
17     {
18         printf("%I64d\n",A(m,n));
19     }
20     return 0;
21 }