They are moves codes. Go to the move tutor & the 1st move is the move you put in the code for. It will say a different name, but if you see the attack power and description, it will be the one you entered in:
C4A2603B 53B8FC9B Fire Blast
Thank you. I final kicked the pains sorry ass.
Ok any ideas where You can catch a charmander because I REALLY WANT ONE NOW. 🤔
Trade it or start a new game.