I made a mistake on my AP US Hisory exam....

I accidentally wrote my saq answer for #4 in slot 1, and when I realized I made the mistake I was already done, and since you have to write in pen I couldn’t erase fix it. So I went on and wrote my saq answer for #1 in slot 4. I wrote a note at the top saying I made a mistake and rewriting the number that I answered, but will they still count it?

I think they’ll probably count it, but it might result in a scoring delay.

They will figure it out- I have scored tests for 5 years- no worries