Question: How to convert a string to matrix?

hello..

i have promblem, how i convert string to matrix and then, seprate row in matrix..

for example
a:=["0101101","0000101","0001001"]
 i want convert to matrix like..

and i want seprate to 3 row different

and so on becouse. i want add this matrix to another matrix.. how can i do it??

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