Buat Mayang

// Online C++ compiler to run C++ program online
#include <iostream>

int hijau (int x, int y) {
     if (x < y) {
           x = x+y;
           y = x-y;
           x = x-y;
     }

     if (y==0) {
          return x;
     }
     return hijau(x-y, y);
}

int merah(int q, int w, int e, int r) {
    if (q < w) {
        return 0;
    }
    return hijau(q,e) + merah(q-r, w, e, r);
}

int biru(int n) {
    int ans = 0;
    ans +=merah(n, 1, n, 1);
    ans -=merah(2 *n, 2, n, 2);
    return ans * 3;
}



int main() {
    std::cout << biru(69);;
}