Mate in 4 and 5

It is White's move. White can mate in 4 and in 5 starting with the same move. What is that move?

The bottom left corner square has coordinates $(0, 0)$ . Each piece has a value: $\text{Bishop}=3$ , $\text{Pawn}=1$ and $\text{King}=4$ .

Submit your answer as $V\times { x }_{ 1 }\times { y }_{ 1 }$ , where $V$ denotes the value of the piece that White must move and the coordinates of the square where it has to go are $\left( { x }_{ 1 },{ y }_{ 1 } \right)$ .

Clarification: Black plays optimally .

This is the fourth problem of the set Mate .