h, n = map(int, input().split())
cnt = 1
for _ in range(n-1):
    u = int(input())
    if h < u:
        cnt += 1
unta = int(str(cnt)[len(str(cnt))-1])
nn = str(cnt)
if unta == 1:
    print(nn+"st")
elif unta == 2:
    print(nn+"nd")
elif unta == 3:
    print(nn+"rd")
else:
    print(nn+"th")