45÷ { - 2 + 12÷ ( - 7 + 3) + 12 – [( - 24) ÷ (( - 3) ·5 + 7)] + 5}42 ÷ [( - 6) - ( - 3)] + 28 ÷ [ - 6 - ( - 8)] + 1 - [ - 4 + ( - 10) ÷ ( - 5)] + [ + 3 + ( - 9) ÷ ( - 9)]?
45÷ { - 2 + 12÷ ( - 7 + 3) + 12 – [( - 24) ÷ (( - 3) ·5 + 7)] + 5} 42 ÷ [( - 6) - ( - 3)] + 28 ÷ [ - 6 - ( - 8)] + 1 - [ - 4 + ( - 10) ÷ ( - 5)] + [ + 3 + ( - 9) ÷ ( - 9)].