#include <iostream>
#include <cmath>
using namespace std;
int main() {
    int num;//
    int sum=0;//
    char op;//
	int ex =0;//
	char a = '^';//
    	while(cin>>num){//
    		sum=num;//
    			while (cin>>op){// enter numbers
    			    switch (op){
    					case '+': //add
    						cin>>num;
    						if(cin>>a){
    							ex = pow(num,2);
    							sum+=ex;
    							break;
    						}
    						else{
    							sum = sum + num;
    							break;
    						}
    					case '-': //subtract
    						cin>>num;
    						if(cin>>a){
    							ex = pow(num,2);
    							sum-=ex;
    							break;
    						}
    						else {
    							sum -= num;
    							break;
    						}
    					case '^':
    						ex = pow(num,2);
    						sum=ex;
    						break;
    					case ';':
    						cout<<sum<<endl;
    						sum=0;
    						//sum =num;
    						break;
    				}
    				//cout<<sum<<endl;
    			}
    		cout<<sum<<endl;
    	}

return 0;
}