(-22)[(-23)-{(-17)-(-61)}]
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(-22) [(-23)-{-17)-(-61)}]
==> { -22 - [ -23 - { -17 + 61 } }
==> { -22 - [ - 23 + 17 - 61 ] }
==> { -22 + 23 -17 + 61 }
==> { 1 - 17 + 61 }
==> { -16 + 61 }
==> { 45 }
ANS- 45
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