MATLAB: Is there a matrix which can be alphanumeric

MATLAB

I am trying to make a matrix like
``    1n  -1     1n   2     1n   1     1n   3 ``
The first column is going to be concatenated string where the first alphabet is the counter of the for loop and the alphabet 'n'
For ex: for coun = 1:1:10
``code will go here``
end
should give output for coun = 3 as:
``3n3n3n3n``
and then I need to put this along with a new matrix j which is
``-1213``
The order of the final matrix is decided by the matrix j as it has the same number of rows as the number of rows of the matrix j.
So the final output is:
``    3n  -1     3n   2     3n   1    3n   3 ``

• A matrix cannot contain mixed data types. It's possible to create a string array that does what you want, but everything will have to be strings.
``````a = string(ones(4,1)*3)+"n";b = [-1 2 1 3]';j=[a string(b)]j = 4×2 string array    "3n"    "-1"
"3n"    "2"
"3n"    "1"
"3n"    "3"
``````
If instead you want to mix data types, you could use a table.
``````j=table(a,b)j = 4x2 table     a      b
____    __

"3n"    -1
"3n"     2
"3n"     1
"3n"     3
``````