b,f='\/';p=lambda t,n='\n':(t[2:]and p(f+''.join(map({f:b,b:f}.get,t[2:-2]))+b,n+' '))+n+t print(p('/\\\\\\')) print(p('//\\\\///\\/\\')) print(p('/////////////\\'))
Standard input is empty
/\ /\\\ /\ /\\\ /\///\ ///\\\/\ //\\///\/\ /\ /\\\ /////\ /\\\\\\\ /////////\ /\\\\\\\\\\\ /////////////\