t = int(input()) for _ in range(t): a,b,c = input().split() a,b,c = int(a),int(b),int(c) flag = True for x in range(1000,9999+1): if x%a == 0 and (x+1) % b ==0 and (x+2) % c ==0 : print(x) flag = False break if flag: print("Impossible") # t=int(input()) # for i in range(t): # a,b,c=input().split() # a,b,c=int(a),int(b),int(c) # for x in (1000,10000): # if x%a==0 and (x+1)%b==0 and (x+2)%c==0: # print(x) # break # else: # print("Impossible")