def main():
    H, N = map(int, input().split())
    A = [int(input()) for i in range(N-1)]
    A = sorted(A+[H], reverse=True)
    print((['1st', '2nd', '3rd'] +
          [f'{n}th' for n in range(4, N+1)])[A.index(H)])


if __name__ == '__main__':
    main()