How to compare two matrix?

2019 9 16
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更新时间：2019 9 16
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Hi all,
I have 2 different matrix A and B. I am wondering how to write a script to find how many times does a 1 in matrix A line up with 3 in matrix B. As we can see, in this case, there are 6 times where 1 in matrix A line up with 3 in matrix B, and their locations are all in the first column (Bolded 3 in the matrix B).
A =
[1 1 1 1 1 1 1 1 1 1
1 2 2 2 2 2 2 2 2 1
1 2 3 3 3 3 3 3 2 1
1 2 3 4 4 4 4 3 2 1
1 2 3 4 5 5 4 3 2 1
1 2 3 4 5 5 4 3 2 1
1 2 3 4 4 4 4 3 2 1
1 2 3 3 3 3 3 3 2 1
1 2 2 2 2 2 2 2 2 1
1 1 1 1 1 1 1 1 1 1];
B =
[1 1 1 1 1 1 1 1 0 0
2 2 2 2 2 2 2 1 0 0
3 3 3 3 3 3 2 1 0 0
3 4 4 4 4 3 2 1 0 0
3 4 5 5 4 3 2 1 0 0
3 4 5 5 4 3 2 1 0 0
3 4 4 4 4 3 2 1 0 0
3 3 3 3 3 3 2 1 0 0
2 2 2 2 2 2 2 1 0 0
1 1 1 1 1 1 1 1 0 0];
Please help~
Thank you!

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