I have two matrices, A and B which are something like:

A = [1; 2; 3; 4; 16; 17; 18; 19 ….] (not a repeating formula just numbers from 1 to 8976 with a lot missing in between)

B = [1 2 3 4 8 9 10 11; 1 2 5 6 7 8 16 17; 3 4 5 6 18 19 20 21]

I want to make it so that the numbers in B that are not in A are change to 0, so that B would look like

[1 2 3 4 0 0 0 0; 1 2 0 0 0 0 16 17; 3 4 0 0 18 19 0 0]

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