This challenge is very easy, in the link you will see that each objective has a number from 1 to 17. You just have to add the numbers of the following objectives to obtain the code. Follow the example:

• Example: Good Health and Well-Being - _3

• Quality Education                                         __

• Life Below Water                                           __

• Partnerships for the Goals                      +  __                 

• Sustainable Cities and Communities       __

• Affordable and Clean Energy                     __     

                                                                            ________

                                                                   Total:    __