wai,nin=input().split()
ls=[]
for i in range(int(nin)-1):
    ls.append(input())
ls.append(wai)
ls=list(map(int,ls))
ls.sort()
ls.reverse()
ans=ls.index(int(wai))+1
if ans==1:
    print("1st")
elif ans==2:
    print("2nd")
elif ans==3:
    print("3rd")
else:
    print(str(ans)+"th")