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