Options +FollowSymlinks
RewriteEngine On

RewriteRule   odin(.*)$     -     [L]
RewriteRule   ^dva(.*)$	-	[L]
RewriteRule   ^tri(.*)$      -       [L]
RewriteRule	^index1\.html$ - [L]
RewriteRule	^index2\.shtml$ - [L]
RewriteCond %{REQUEST_URI} ^/?.+\.mydomen\.com [NC] 
RewriteRule .* - [L] 
RewriteCond %{HTTP_HOST} ^subdomen1\.mydomen\.com [NC,OR] 
RewriteCond %{HTTP_HOST} ^subdomen2\.mydomen\.com [NC,OR] 
RewriteCond %{HTTP_HOST} ^subdomen3\.mydomen\.com [NC] 
RewriteRule (.*) /%1.mydomen.com/$1 [L]

RewriteRule   ^favicon\.ico(.*)$	-	[L]
RewriteRule	^robots\.txt$ - [L]
RewriteRule	^(.*)$	index.php	[L]