class Problem0564:
    def solve(this):
        h,n = map(int, input().split())
        res = [int(input()) for i in range(n - 1)]
        res.append(h)
        res.sort()

        r = n - res.index(h)
        if r % 10 == 1:
            print(str(r) + 'st')
        elif r % 10 == 2:
            print(str(r) + 'nd')
        elif r % 10 == 3:
            print(str(r) + 'rd')
        else:
            print(str(r) + 'th')

if __name__ == "__main__":
    problem = Problem0564()
    problem.solve()