for(n=3*readline(i=0);(i+=3)<4*n;print(o))for(o=j='';j++<Math.min(n,i-1,4*n-i)+n-2;)o+='_/ \\_'[j<Math.max(n-i+2,i-3*n)?2:(i+j)%6]
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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