The operation $$\otimes$$ acts on two numbers to give the following outcomes:  $$2 \otimes 4 = 44$$  $$5 \otimes 7 = 104$$  $$1 \otimes 5 = 28$$  $$7 \otimes 10 = 146$$  What is $$6 \otimes 12$$ equal to? 
Overseas Competition->Knowledge Point->Combinatorics->Logical Reasoning