h, n = map(int, raw_input().split())
a = 0
for i in range(0, n - 1):
    x = int(raw_input())
    if x > h:
        a = a + 1
r = a + 1
m = r % 10
if m == 1:
    p = 'st'
elif m == 2:
    p = 'nd'
elif m == 3:
    p = 'rd'
else:
    p = 'th'
print str(r) + p