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1000-[(40001-39002):9+0:(1001-1000)+89:89]

Răspuns :

1000-((40001-39002):9+0:(1001-1000)+89:89)=

=1000-(999:9+0:1+1)=

=1000-(111+0+1)=

=1000-(111+1)=

=1000-112=

=888