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