multiplication of rows by range in a matrix

i have two matrices

matrix A:

50 44 80 0

50 0 80 52

50 0 80 52

49 49 2 2

matrix B:

5 4 9 7

10 3 10 6

If 1,2,3,4 or 5 is written in matrix b, multiply the last row in matrix A with the first row.

If matrix b says 6 or 7, multiply the last row in matrix A with the second row.

If 8 is written in matrix b, multiply the last row in matrix A with the third row.

However, let him continue this by examining both columns separately. It should return for each row of matrix B.And display them in a new matrix

For example the new matrix:

2450 2156 160 104

2450 132 160 104

Is such a code possible?

Thank u for help

[Voss]

Where does the 132 come from in the new matrix? The only way I can see 132 resulting from multiplying two of the given numbers is A(1,2)*B(2,2) = 44*3 = 132, but the rules don't say anything about multiplying elements from A with elements from B - they always say to multiply elements from two rows of A.

[Berfin Çetinkaya]

True, 132 come from A(1,2)*B(2,2) = 44*3 = 132.

These matrices relate to a real-life problem. So there is no way to multiply these two matrices?

[Torsten]

It's possible, but you stated the rules differently.