#include <iostream>
#include <iterator>
#include <sstream>
#include <stdexcept>
#include <string>
#include <vector>
 
int main()
{
  bool result;
 
  // Read the line
  std::string line;
  std::getline(std::cin, line);
 
  // Split the line at spaces (https://stackoverflow.com/a/237280/1944004)
  std::istringstream iss(line);
  std::vector<std::string> tokens{std::istream_iterator<std::string>{iss}, std::istream_iterator<std::string>{}};
 
  // Convert last element to bool
  if (tokens.back() == "true") result = true;
  else if (tokens.back() == "false") result = false;
  else throw std::invalid_argument("The last argument is not a boolean!");
 
  // Remove the last element
  tokens.pop_back();
 
  // Loop over the nots
  for (auto const& t : tokens)
  {
    if (t == "not") result = !result;
    else throw std::invalid_argument("Negation has to be indicated by 'not'!");
  }
 
  // Output the result
  std::cout << std::boolalpha << result << '\n';
}

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

bm90IG5vdCBub3Qgbm90IG5vdCBub3Qgbm90IGZhbHNl

not not not not not not not false