n=2**input();s=1 while n: \x09n-=1;k=" "*n;t=s \x09while t:k+=" / _/ _\ \\"[t&3^1::3];t/=4 \x09s^=s+s;print k[s&2:]
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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