#include <iostream>
 #include <cmath>
 #include "pch.h"
  using namespace std;
   int main() {
   setlocale(LC_ALL, "Russian");
    int n;
     cin >> n;
    double sum=0,sumpoloj=0,c=0,min=n,max=n,pred=0,predpred=0;
     	if (n!=0)
      	while (n != 0)
       		{
       	predpred=pred; 			pred=n;
       	cin>>n;
       	if(n!=0)
       {
        			if ((n>0)) 				{
        		sumpoloj=sumpoloj+n;
        			 c++;
        	}

        	int pervoechislo=0;
        	if ((pred<0&&n<0)) 			{ 				sum=sum+n;
        if (pervoechislo==0||(predpred>0&&pred<0)||(predpred<0&&pred>0)) 					{ 					 sum=sum+pred; 					} 				pervoechislo++; 					 			 			} 				if (min > n) 					min = n; 				if (max < n) 					max = n;} 			} 		 	if (c!=0) 	cout <<"Summa: "<< sum << endl << "Srednee: "<<sumpoloj / c<< endl <<"Max: "<<max<< endl <<"Min: "<<min<<endl; system("pause"); }