h,n = map(int,input().split())
c = 1
for i in range(n-1):
	hs = int(input())
	if hs > h:
		c += 1
if c == 1:
	print("1st")
elif c == 2:
	print("2nd")
elif c == 3:
	print("3rd")
else:
	print(str(c)+"th")