H,N,*h=map(int,open(0).read().split())
h.append(H)
h.sort(reverse=True)
ans=h.index(H)+1
if ans%10==1:
  print(f"{ans}st")
elif ans%10==2:
  print(f"{ans}nd")
elif ans%10==3:
  print(f"{ans}rd")
else:
  print(f"{ans}th")