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puts$<.read.gsub /^test$/,'X\&X'

Success #stdin #stdout 0.01s 7452KB

stdin

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test
foo
test
bar

stdout

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XtestX
foo
XtestX
bar

https://ideone.com/8jxyzT

language:

Ruby (ruby 2.5.5)

created:

visibility:

public

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