Creating combination of numbers with constraint (fixed sequence)

Hi I am trying to solve a graph problem. I am unable to proceed solving the problem because of following:

I have a set of binary matrices

A = [2 3 4]; B = [1]; C = [1 2]; D = [2]; E = [2 5]; means

A = [A1 A2 A3]; B = [B1]; C = [C1 C2]; D = [D1]; E = [E1 E2];

I want to create a combination matrices using A,B, C, D, E matrices, however combination only has to be in sequential order from A to E: Results should be as follow: comb1 = [2 1 1 2 2]; means comb1 = [A1 B1 C1 D1 E1]

comb2 = [2 1 1 2 5]; means comb2 = [A1 B1 C1 D1 E2]

comb3 = [2 1 2 2 2]; means comb3 = [A1 B1 C2 D1 E1]

comb4 = [2 1 2 2 5]; means comb4 = [A1 B1 C2 D1 E2]

comb5 = [3 1 1 2 2];

comb6 = [3 1 1 2 5];

comb7 = [3 1 2 2 2];

comb8 = [3 1 2 2 5];

comb9 = [4 1 1 2 2];

comb10 = [4 1 1 2 5];

comb11 = [4 1 2 2 2];

comb12 = [4 1 2 2 5];

COULD YOU PLEASE LET ME KNOW IF THERE IS A SMART WAY TO GENERATE SUCH SEQUENTIAL COMBINATION??

THANKS