Sierpinski Carpet by murky-satyr

for(y=n='#139'[readline()]*3;c='',y--;print(c))for(x=n;x--;)c+=(x%3&y%3|x/3%3&y/3%3|x/9%3&y/9%3)&1?'  ':'::'

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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