Natsortfiles for overlaying plots

I want to ask, how to use natsortfiles to sort alphanumerically overlaying plots in one figure? I find it difficult to match one plot to another because they have different directories and filenames

This is my code

% E = folder cropped greyscale
X = 'C:\Users\Lenovo\Documents\new matlab\hasil cacah 2\croppedk';
S = dir(fullfile(X,'*.jpg'));
contents = natsortfiles({S.name});
% I = folder contour
Y = 'C:\Users\Lenovo\Documents\new matlab\hasil cacah 2\contourk';
L = dir(fullfile(Y,'*.jpg'));
isi = natsortfiles({L.name});
for k = 1:numel(contents)
    for i =1:numel(isi)
    E = imread(fullfile(X,contents{k}));
  % Make a truecolor all-green image.
    green = cat(3, zeros(size(E)), ones(size(E)), zeros(size(E)));
    hold on
    h = imshow(green);
    hold off
    I = imread(fullfile(Y,isi{i}));
    % green image.
    set(h, 'AlphaData', I)
    % Use our influence map image as the AlphaData for the solid
        path = 'C:\Users\Lenovo\Documents\new matlab\hasil cacah 2\croppedk\zPlot';
    saveas(gcf,fullfile(path,['zPlot' int2str(k) '.jpg']));
    end
end

I want to overlay plots from different folders, folder 1 has filenames such as "gs1", "gs2" ,"gs3" ,"gs4" and folder 2 : "ax1"," ax2", "ax3" ,"ax4" so that i can overlay "gs1" with "ax1" and save as "z1", "gs2" with "ax2" and save as "z2", and so on.

[Stephen23]

"I find it difficult to match one plot to another because they have different directories and filenames"

My guess is that the folders contain data files where each file corresponds 1-1 with a file in the other folder, and that you want to process these file pairs. If this is the case, then using nested loops is probably not the best approach.

As the code is written, you are performing the same operations for all permutations of the files. Because you have not actually explained your goal, we cannot know if this is correct or not. Please give four or five example filenames from both of the folders and also show which ones should be processed together.

[Manuella Juwita]

Sorry about the confusion, yes I wanted to overlay plots from different folders, folder 1 has filenames such as "gs1", "gs2" ,"gs3" ,"gs4" and folder 2 : "ax1"," ax2", "ax3" ,"ax4" so that i can overlay "gs1" with "ax1" and save as "z1", "gs2" with "ax2" and save as "z2", and so on.

How can I achieve this? Thank you in advance, Stephen.

[Stephen23]

The sunokest approach is probably just to generate the filenames using sprintf:

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html