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