How to save multiple figures created by bar() in a loop with different name?

I have seen many posts regarding this but none of them worked for me. I have the following code in which I want to save created figures in two formats .fig and .png. But every time the compiler says "Unable to open file "E:\figs\RX 1: Iteration= 100.fig" for output."

    fpath = 'E:\figs\';
    % Plotting the results
    c = X;  % Something in c
    for i = 1:size(input,1)
        figure(i);
        title(sprintf('RX %d: Iteration=%d, zeta=%3.2f, n=%d, p=%d',i,iteration_count_par,zeta_par,n_par,p_par));
        ylabel('Ratio (%)');
        hold on;
        y = Y;  %  Something in y
        bar(c,y);
        legend('Accuracy','False Positive Ratio','False Negative Ratio');
        fname = sprintf('E:\figs\RX %d: Iteration=%d',i,iteration_count_par);
        saveas(gca,fullname(fpath,fname),'fig');
        saveas(gca,fullname(fpath,fname),'png');
        hold off;
    end

Answer 1

[KL]

for iCount = 1:3
    h = figure;
    bar(rand(iCount))
    fname_fig = ['figure_' num2str(iCount) '_in_fig_format.fig'];
    fname_png = ['figure_' num2str(iCount) '_in_png_format.png'];
    saveas(h,fullfile(pwd,fname_fig));
    saveas(h,fullfile(pwd,fname_png));
end