function out = myReshape(arr, rowNew, colNew)
[rowOld colOld] = size(arr)
for m = 1:rowOld
    a(m*colOld-colOld+1:m*colOld) = arr(m,:)
end
out = zeros(rowNew, colNew)
for j = 1:colNew
        out(1:rowNew,j) = (a(j*colNew-colNew+j:j*rowNew))'
end
end