first you must find a person who has these pokemon in the following order:
1.any level 100 pokemon
2. any low level pokemon
3.same as 2
4.same as 2
5.same as 2
6.same as 2
now first you must defeat the level 100 pokemon with a strong pokemon when you defeat the pokemon you will get about 4000 exp and then when you go to the other pokemon (example torkoal level 14) select your weak pokemon but dont attack instead click on refresh and then destroy torkoal with your weak pokemon. when it says torkoal fainted see the exp and you will see that your pokemon will get the same exp as your strong pokemon did against the level 100 pokemon.
this might not work in internet explorer.