#include<iostream> 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 if(m > 0 && n > 0) return akm(m - 1,akm(m,n - 1)); } int main(){ int m,n; cin >> m >> n; cout << akm(m,n) << endl; return 0; }