#yuki_564

h,n=map(int,raw_input().split())
l=[h]
for i in xrange(n-1):
 l.append(int(raw_input()))
l2=sorted(l,reverse=True)
idx=l2.index(h)+1
#if idx==11 or idx==12 or idx==13:
# print str(idx)+'th'
if idx%10==1:
 print str(idx)+'st'
elif idx%10==2:
 print str(idx)+'nd'
elif idx%10==3:
 print str(idx)+'rd'
else:
 print str(idx)+'th'