def find_pairs(k): results = [] for x in range(k+1,2*k+1): y = k *x//(x-k) if k*x % (x-k)== 0: results.append((x, y)) return results def main(): k = int(input( )) pairs = find_pairs(k) for x, y in pairs: print("1/{} = 1/{} + 1/{}".format(k,x,y)) main()