How to Return a matrix 3x30 of users in solidity

I have a little complex question about Solidity I have a project that I need to solve a matrix and return a matrix 3x30 of users for example

                 1
               1 1 1
            111 111 111
111 111 111 111 111 111 111 111 111
.......................................

how to do this in solidity
I appreciate any idea
is this helpful

uint256[3][30] downLines;

thanks