nama, N = map(int, input().split())
rank = 1
for i in range(N-1):
    cm = int(input())
    if nama < cm:
        rank += 1
if rank.endswith(1):
    print(rank +"st")
elif rank.endswith(2):
    print(rank +"nd")
elif rank.endswith(3):
    print(rank +"rd")
else:
    print(rank +"th")