index.php

<?php if (have_posts()) :
    $count = 0; $paged = ( get_query_var('paged') > 1 ) ? get_query_var('paged') : 1;
    while (have_posts()) : the_post();
        $count++;
        if ($count <= 1 && $paged === 1) :
            if ($count === 1) echo ''; ?>

******First Post HTML/CSS/PHP GOES HERE******

<?php elseif (1 < $count && $count <= 3 && $paged === 1) :
           if ($count === 2 ) echo ''; ?>
          
******Next Two Posts HTML/CSS/PHP GOES HERE******


<?php elseif (3 < $count && $count <= 8 && $paged === 1) :
           if ($count === 5) echo 'DIV/CONTENT BEFORE THE NEXT 5 POSTS GOES HERE; ?>
           
 ******Next Five Posts HTML/CSS/PHP GOES HERE****** 
           

<?php elseif (8 < $count && $count <= 17 && $paged === 1) :
           if ($count === 9) echo 'DIV/CONTENT BEFORE THE NEXT 9 POSTS GOES HERE'; ?>
           
   ******Next Nine Posts HTML/CSS/PHP GOES HERE****** 
   
   
   <?php elseif (17 < $count && $count <= 27 && $paged === 1) :
           if ($count === 10) echo 'DIV/CONTENT BEFORE THE NEXT 10 POST GOES HERE'; ?>

   ******Next Ten Posts HTML/CSS/PHP GOES HERE****** 

 <?php endif;
    endwhile; ?>

<?php
endif;?>