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

ct = 1

for i in range(n - 1):
    if h < input():
        ct += 1

if ct % 10 == 1:
    print str(ct) + "st"
elif ct % 10 == 2:
    print str(ct) + "nd"
elif ct % 10 == 3:
    print str(ct) + "rd"
else:
    print str(ct) + "th"