import os
MyPC = os.path.basename(__file__) != "Main.py"
if MyPC:
  from icecream import ic
  ic.disable()
else:
  def ic(*args):
    return None
ic.enable() if MyPC else None
def main():
  h, n = map(int, input().split())
  lh = []
  for i in range(n-1):
    lh.append(int(input()))

  lh.append(h)
  lh2 = sorted(lh, reverse=True)
  if h == lh2[0]:
    print("1st")
  elif h == lh2[1]:
    print("2nd")
  elif h == lh2[2]:
    print("3rd")
  else:
    rank= lh2.index(h)
    print(f"{rank+1}th")



if __name__ == "__main__":
  main()