s/-/4294967295 /
:1
s/[1-9]/&_/g
y/123456789/012345678/
s/\(0_*\)\(_*\)\( \w*\)\1.\b/\3\n0\2/
s/_0\(_* \)/9_\1/
t1
/ /D
s/$/__!/
:
s/_\{31\}/=/
s/_\(0=*\)/\1__________/
t
s/_/!ABCDEFGHIJKLMNOPQRSTUVWXY/
s/\w*\(.\)\w\{28\}!\|^\w*!/\1/
y/=/_/
t
Note that non-ascii characters in the above source code will be escaped (such as \x9f).