for(;scale=x++-z=500;){y=(a=read())%2 for(b=read();y<z;p=!++y){for(s=-o=(a+y-4)/2;o;s=o--*p++-b+y)if(s>=y&&s<z)z=s} z}
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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