import sys
def solve():
 try:
 n=int(Sys.stdin.readline().strip())
  if not(0<n<=1000):
  raise valueError
  except valueError:
  print("invalid input")
  return
  raw data =[sys.stdin.readlune().strip() for_in range(n)]
  valid = []
  invalid = []
  for item in raw_data:
  if item.isdigit():
  valid.append(int(item))
  else:
  invalid.appdend(item)
  print(*(stored(valid)))
  if invalid:
  print(*(Invalid))
  if__name__ == "__main__":
  solve()