#41300: python


suyueh (suyueh)


r=1
t=int(input())
for i in range(1,t+1):
  a=input()
  s=len(str(a))
  for x in range(0,s):
    r=r*int(a[x])
  print(r)
  r=1
 
len是判斷有幾位數的