cy, 42 bytes

Result

WA

Code [DL]

0 &print 1 &print {&+ &print} {true} while

stdin

7210629035610177270072183807691696876136465188476250251312922869053672178435507978250193276713489802

stdout

0
1
1

stderr

RubyError
	@ `true' (0:0)
RubyError
	@ `while' (0:37)
/home/esolang/interpreters/cy.rb:552:in `block in runMeth': undefined method `call' for nil:NilClass (NoMethodError)
	from /home/esolang/interpreters/cy.rb:665:in `block in exec'
	from /home/esolang/interpreters/cy.rb:660:in `each'
	from /home/esolang/interpreters/cy.rb:660:in `exec'
	from /home/esolang/interpreters/cy.rb:583:in `block in block'
	from /home/esolang/interpreters/cy.rb:331:in `block in <class:Cy>'
	from /home/esolang/interpreters/cy.rb:80:in `instance_exec'
	from /home/esolang/interpreters/cy.rb:80:in `block (2 levels) in initialize'
	from /home/esolang/interpreters/cy.rb:549:in `block in runMeth'
	from /home/esolang/interpreters/cy.rb:665:in `block in exec'
	from /home/esolang/interpreters/cy.rb:660:in `each'
	from /home/esolang/interpreters/cy.rb:660:in `exec'
	from /home/esolang/interpreters/cy.rb:777:in `block (3 levels) in <main>'
	from /home/esolang/interpreters/cy.rb:844:in `<main>'

strace