H,N = list(map(int,input().split()))
h = list(map(int,input().split()))

rank = 1
for i in h:
    if h > H:rank += 1
if rank % 10 == 1:
    S = 'st'
elif rank % 10 == 2:
    S = 'nd'
elif rank % 10 == 3:
    S = 'rd'
else:
    S = 'th'
print(rank,S,sep = '')