#!perl -l
map{chop;$a{join'',sort/./g}.="$_ "}sort<>;map{chop;/ /&&print}sort{$a=~y/ / /<=>$b=~y/ / /||$a cmp$b}%a
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#!perl -l
map{chop;$a{join'',sort/./g}.="$_ "}sort<>;map{chop;/ /&&print}sort{$a=~s/ / /g<=>$b=~s/ / /g||$a cmp$b}%a
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#!perl -l
map{/$/;$a{join'',sort split''}.="$` "}sort<>;map{chop;/ /&&print}sort{$a=~s/ / /g<=>$b=~s/ / /g||$a cmp$b}%a
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#!perl -l
map{/.*/;push@{$a{join'',sort split''}},$&}sort<>;map{@$_>1&&print join' ',@$_}sort{@$a<=>@$b||$$a[0]cmp$$b[0]}%a
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#!perl -l
map{/.*/;push@{$a{join'',sort split''}},$&}sort<>;map{print join' ',@$_ if@$_>1}
sort{@$a<=>@$b||$$a[0]cmp$$b[0]}%a;
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#!perl
chop(@a=<>);map{push@{$a{join'',sort map{ord}split''}},$_}sort@a;map{print join(
' ',@$_),$/if@$_>1}sort{@$a<=>@$b||$$a[0]cmp$$b[0]}%a;
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