input = input[:index-1] + input[index:]
Governments learned long ago that entrepreneurs and investors respond to incentives. With the right financial motivation, entrepreneurs build housing, create jobs, develop domestic manufacturing, produce energy, grow food and more. That’s why businesses benefit from deductions, favorable tax rates and credits.
，更多细节参见PDF资料
Раскрыты подробности о договорных матчах в российском футболе18:01。PDF资料对此有专业解读
这个体系的设计之精巧，远超任何人的想象。