221KiB, 1064x465, my-image.png View SameGoogleiqdbSauceNAO Anonymous Sat 18 Dec 20:08:47 2021 No.13979067 ViewReplyOriginalReport Quoted By: >>13979071 >>13979081 Hello /sci/, anybody else good at math in every area but completely brainlet at combinatorics? How can I change that? >pic unrelated