rewrite ^/show-([0-9]+)([\-])?([0-9]+)?\.html$ /show.php?itemid=$1&page=$3 last;
rewrite ^/list-([0-9]+)([\-])?([0-9]+)?\.html$ /list.php?catid=$1&page=$3 last;
rewrite ^/show/([0-9]+)/([0-9]+)?([/])?$ /show.php?itemid=$1&page=$2 last;
rewrite ^/list/([0-9]+)/([0-9]+)?([/])?$ /list.php?catid=$1&page=$2 last;
rewrite ^/(.*)-htm-(.*)$ /$1.php?$2 last;