H,N=map(int,input().split())
rank=1
for i in range(N-1):
    H1=int(input())
    if H<H1:
        rank+=1
if rank%10==1:
    e="st"
elif rank%10==2:
    e="nd"
elif rank%10==3:
    e="rd"
else:
    e="th"
print(str(rank)+e)