题解

#include<iostream>
#include<cmath>
using namespace std;
int  akm(int m,int  n){
	 if(m==0) return n+1;	
	 else if(m>0&&n==0) return akm(m-1,1);	
	else return akm(m-1,akm(m,n-1));
}
int main(){
    int n,m;
    cin>>m>>n;
    cout<<akm(m,n)<<endl;
	return 0;
}