capital and small letters by murky-satyr

for(w=readline(i=0);i++<1<<(j=w[-1]);w=w.slice(0,j)+t)for(print(w),t='';j&&(t=String.fromCharCode(w.charCodeAt(--j)^32)+t)<it;);

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

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