def main():
    z = input()
    if z[0] == 'Z': print('1st')
    if z[0] == 'B': print('2nd')
    if z[0] == 'S': print('3rd')
    if z[0] == 'E': print('4th')
    if z[0] == 'D': print('Alpha')


if __name__ == '__main__':
    main()