H, N = map(int, input().split())
HS = [H]
for _ in range(N - 1):
  HS.append(int(input()))
HS = list(reversed(sorted(HS)))
Q = str(HS.index(H) + 1)
if Q[-1] == "1":
  print(f"{Q}st")
elif Q[-1] == "2":
  print(f"{Q}nd")
elif Q[-1] == "3":
  print(f"{Q}rd")
else:
  print(f"{Q}th")