# your code goes here H, N = list(map(int, input().split())) Hs = [int(input()) for i in range(N-1)] Hs.sort() rank = 1 for i, Hi in enumerate(Hs[::-1], start=1): if Hi < H: break else: rank+=1 if rank==1: print('1st') elif rank==2: print('2nd') elif rank==3: print('3rd') else: print(str(rank)+'th')