Let ⋆ be an operation defined in the set of nonnegative integers with the following properties: for any nonnegative integers x and y,
(i) (x+1)⋆0=(0⋆x)+1
(ii) 0⋆(y+1)=(y⋆0)+1
(iii) (x+1)⋆(y+1)=(x⋆y)+1.
If 123⋆456=789, find 246⋆135. inductionalgebra unsolvedalgebra