18 lines
385 B
C++
18 lines
385 B
C++
#include<stdio.h>
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long int A(long int,long int);
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int main()
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{
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long int n,m;
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while(scanf("%ld%ld",&m,&n)!=EOF)
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printf("%ld\n",A(m,n));
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return 0;
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}
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long int A(long int m,long int n)
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{
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if(n==0) return A(m-1,1);
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else if(m==0)return n+2;
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else if(m==1) return n+2;
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else if(m==2) return 2*n+3;
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else if(m==3)return A(m,n-1)*2+3;
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}
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