def Main():
    from bisect import bisect
    h,n=map(int,input().split())
    a=[int(input())for _ in range(n-1)]
    a.sort()
    ans=n-bisect(a,h)
    print(ans,end="")
    if ans%10==1:
        print("st")
    elif ans%10==2:
        print("nd")
    elif ans%10==3:
        print("rd")
    else:
        print("th")
Main()