h, n = map(int, input().split())

ls = [h]
for i in range(n-1):
    ls.append(int(input()))
    
ls.sort()

ls.reverse()
r = ls.index(h) + 1

if str(r)[-1] == "1":
    print(str(r)+"st")
elif str(r)[-1] == "2":
    print(str(r)+"nd")
elif str(r)[-1] == "3":
    print(str(r)+"rd")
else:
    print(str(r)+"th")