x,n=map(int,input().split())
h=[x]+[int(input()) for _ in range(n-1)]
h.sort()
a=n-h.index(x)
if a%10==1:
    print('1st')
elif a%10==2:
    print('2nd')
elif a%10==3:
    print('3rd')
else:
    print(str(a)+'th')