#include <iostream>
using namespace std;

int countPaths(int x, int y) {
    // if we are at the origin, there is 1 path
    if (x == 0 && y == 0) return 1;
    
    int paths = 0;

    // Move left if x > 0
    if (x > 0) paths += countPaths(x - 1, y);
    
    // Move up if y > 0
    if (y > 0) paths += countPaths(x, y - 1);
    
    return paths;
}

int main() {
    int start_x, start_y;
    cout << "Enter the starting coordinates (x, y): ";
    cin >> start_x >> start_y;
    
    int result = countPaths(start_x, start_y);
    cout << "Number of paths to the origin: " << result << endl;
    return 0;
}