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  1. sed -r ':;s#(+)\|\[:\]\|{|}\|<->##;t'
Runtime error #stdin #stdout #stderr 0s 5076KB
stdin
(+)(+)(+)
[[[:]:]:(+(+))]{<->|<(+)->[:]}(+)
<<<<<<<<<<<<->->->->->->->->->->->->
{|(+[:<-{|(+[:<->])}>])}
[[[:]:[:]]:[[:]:[:]]]
{[:](+)|<->{|}}[(+)<->:{|}(+)]
:[
<|>
(+(+)
[:][:](+[[:]):]
{|{|{|(+{|{|{|}}}}}+)}[:]{|}
{{||}}
<<->-<->-<->>
[(+):((+)+)+(+(+))]
<<<<<->->->->->->
stdout
Standard output is empty
stderr
sed: -e expression #1, char 27: Invalid preceding regular expression