H,N=map(int,input().split())
list=[int(input())for x in range (N-1)]
list.append(H)
Nlist=sorted(list,reverse=True)
a=Nlist.index(H)+1
if a%10==1:
    print(str(a)+'st')
elif a%10==2:
    print(str(a)+'nd')
elif a%10==3:
    print(str(a)+'rd')
else:
    print(str(a)+'th')