H,N = map(int,input().split())
H_list = [int(input()) for x in range(N - 1)] + [H]
H_list.sort(reverse=True)
num = H_list.index(H) + 1
digit1 = num % 10
tail = "th"
if digit1 == 1:
    tail = "st"
elif digit1 == 2:
    tail = "nd"
elif digit1 == 3:
    tail = "rd"
print("{}{}".format(num,tail))