gaylunye

#include <iostream>
//no need to type std
using namespace std;
int main() {
//two variables
  int sum=0;
  int num;
  int sq;
  char j;
  char s;
  cin>>num;
  sum=sum+num;

//while loop
//once no more numbers are to be input
  while (cin>>s>>num) {


//add up the numbers depending on the sign
    if (s == '+' || s == '-') {
      cin.get(j);
      if (s == '+' && j == '^') {
        sq = num * num;
        sum+=sq;
      }
      else if ( s== '-' && j == '^') {
        sq = num* num;
        sum-=sq;
      }
      else if (s == '+') {

        sum+=num;
      }
      else if (s == ';') {

        sum=num;
      }
      else if (j == '^') {
        sq = num * num;
        sum+=sq;
      }
      else {

        sum-=num;
    }
   }

  }
  if ( s == '^') {
  sum = sum * sum;
}
  else {
    sum = sum;

}
  cout<<sum<<endl;

}