import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

x, N, *H = map(int,read().split())

rank = 1 + sum(h > x for h in H)
rank = str(rank)
if rank[-1] == '1':
    rank += 'st'
elif rank[-1] == '2':
    rank += 'nd'
elif rank[-1] == '3':
    rank += 'rd'
else:
    rank += 'th'
print(rank)