Input consists of several test cases followed by a line containing -1. Each test case is a line containing an integer 0 <= n <= 30.
For each test case, output one integer number giving the number of possible tilings.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.020755s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.084216s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001011s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001157s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001001s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003110s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000809s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003816s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017815s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001191s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 198014 [ RunTime:0.014498s ]
