z=({,}{{1..5},{4..0}}) read -N1 a&&(read -N1 b read c echo $[d=z[9+a-b],e=z[9+c-b],f=z[9+a-c],g=d+e,h=d+f,i=e+f,g=g<h?g:h,g=g<i?g:i] . *)
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
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