#include "bits/stdc++.h" using namespace std; int main() { int k; cin >> k; for(int x = k + 1;x <= k * 2;x++) { int y; y = (x * k) * 1.0 / (x - k); if(y == k) { cout << "1/" << k << " = " << "1/" << x << " + 1/" << y << endl; } } return 0; }