`..```.````..````.`.`..`...``.`.``````..顶.`..`..`.`.`.......`.``..`...`..`......`顶.``````.`.`..`..``````.``..``..``.``...`顶`.``````......`..````...`.``..```..`..`.顶...``...`....``.`..```...``....`.....```顶``..``.`..`...``...`.....`.`.`.........`顶````.`..``.`.`........`.```..`.```.``...顶....`.`````.....`.......`..`.``..``....`顶....``.`..`..``...``.........`.``...``.`顶``..```.``.````.`..`...``..`.``..``.``..顶.````.`.`...````.`.`....````...`.`..`.``顶..`.`.`...`.```.`.``...``..``...``...```顶..``...````.....`.`..`````...`..`.....`.顶.`.``.``...``.`..`......`...`.````..`..`顶````...``````..`....````.`....`..`.`.`..顶

.````......`..``.`..`....`.`.`..``.``.`.顶..`.`.````.`.``.``.``.`.``.`..``..``.``.顶`.````.```...`.``````..```..`.``````````顶```.``.``.``..```....```.`..``.`.``..```顶.`.``..`.``.``````....`..```...`..```..`顶.`..``..``..```..`````.`.`..`..``..```.`顶`.```..``..`......``..``.``..`.```..``..顶``.```..``.`.`..``...`.`.`...`..`..```.`顶...``...```.````..``````.`.`..```......`顶..``..`..`.......```.``.....``...`....``顶.```.....`````.`............```````....`顶`..`...```...```...`.....`.`.``.`.`..`.`顶.``.```..``````````....``..`.```````..`.顶.`````..``.....`.````...`.`.`..`.....```顶```..```.``...```.```..```.`.`...```....顶