t = int(input()) for j in range(t): x = list(int(i) for i in input().split()) s = 0 for _ in range(1000, 10000): if _ % x[0] == 0 and (_ + 1) % x[1] == 0 and (_ + 2) % x[2] == 0: print(_) s = 1 break if s == 0: print('Impossible')