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

from bisect import bisect

h = [int(input()) for i in range(N - 1)]

h.sort()

ans = N - bisect(h, H)

if ans % 10 ==  1:
    
    print(ans, 'st', sep='')
    
elif ans % 10 == 2:
    
    print(ans, 'nd', sep='')

elif ans % 10 == 3:
    
    print(ans, 'rd', sep='')
    
else:
    
    print(ans, 'th', sep='')