My friend likes to keep secret stuff inside a safe-box.

I have kept bugging him for the combination to the safe. He finally gave this link: https://mega.nz/#!KP5XwZTA!KPEHBt-w-5x-9_7mevBAQo5AGcs82gQSQKscae34jnA to me. When I opened it I got this puzzling combo box. He told me "Follow the links down the rabbit-hole! There's only one correct path!"

Can you figure out the combination safe lock?