s/ \(\S* \)/ -\1/g
s/\( .*\) /0\10\n-/
:0
s/--//
s/[1-9]/&_/g
y/123456789/012345678/
t0
h
s/^\S* \| \S*\n.*//g
s/ .* / /
s/0_*/&&&&@&&&&&/g
s/0//g
H
g
s/^\S* \S* \| \S* \S*\n.*//g
s/ .* / /
s/0\(_*\)/\1&\1/g
s/\>/0/g
H
g
s/^\S* \S* \S* \| \S* \S* \S*\n.*//g
s/ \S*//
s/0\(_*\)/\1\1&/g
s/\>/0/g
H
g
s/\(\S* \)\{4\}//
s/ .*//
s/_/___/g
s/0_*/&&&&&&&&@&&&&/g
s/0//g
G
s/ .* / /m
y/@\n/0 /
:1
s/0\?_\{10\}/_0/
t1
s/\<0*/0/g
:2
s/\(-\S*\) \(0\S*\)/\2 \1/
t2
:3
s/-//2
s/\(0_*\)\s*\( \w*\)0/\2	\1/
t3
s/\s//
s/0_\{10\}/_0/
t3
s/\<0*/0/g
h
:4
s/0_*-0_*/-/
t4
/.-/b5
/-./b
g
s/^\(.*\)\(.*-\)\1/\2/
/-_/b
:5
g
s/\(.*\)-\(.*\)/\2 \1/
h
:
g
s/.*-/-& /
h
s/0/0_________/g
s/$/_/
H
g
s/-* .* / /
:6
s/\(0_*\)\( \w*\)\1/\2	0/
t6
s/	*0_\{10\}/_0/
t6
s/\s//g
s/_0*/0/
:7
s/_/<<123456789_01>/
s/\(.\)<.*\1\(_*.\).*>/\2/
t7