un = input().split()
nam = int(un[0])
ans = 1
for i in range(int(un[1]) - 1):
    unnn = int(input())
    if unnn > nam:
        ans += 1
if ans == 1:
    print("1st")
elif ans == 2:
    print("2nd")
elif ans == 3:
    print("3rd")
else:
    print(str(ans)+"th")