Why dont i get any output?

Question

iv'e built a minecraft crafting table (for the ones of you who played minecraft probobly know what i am talking about).
for somehow i dont get any ouput by comparing two 2D's arrays.
how can i make it work?

https://code.sololearn.com/cGECavUwV0Oh

Answer 1

nv i fixed it! thank you!