a,b = map(int,input().split())
l = [a] + [int(input()) for _ in range(b - 1)]
l = sorted(l)[::-1]
for i,p in enumerate(l):
    if p == a:
        if i < 3:
            print(["1st","2nd","3rd"][i])
        else:
            print(str(i+1)+'th')
        exit()