H, N = map(int, raw_input().split())
height = [H]
for i in range(1, N):
	height.append(int(raw_input()))
height.sort()
height.reverse()
nama = 0
for i in range(0, N):
	if height[i] == H:
		nama = i+1
		break
ans = str(nama)
if ans[-1] == '1': ans = ans + 'st'
elif ans[-1] == '2': ans = ans + 'nd'
elif ans[-1] == '3': ans = ans + 'rd'
else: ans = ans + 'th'
print ans