33.53-20.{300-[546-23.(78:76+70)]}
= 33.53-20.{300-[546-23.(72+1)]}
= 33.53-20.[300-(546-23.50)]
= 33.53-20.[300-(546-400)]
= 33.53-20.(300-146)
= 33.53-20.154
= 3375-3080
= 295.
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