#include <iostream>
using namespace std;
int main() {
    int sum=0, mas[5][5];
    for (int i=0; i<6; i++){
        for (int j=0; j<6; j++){
        mas[i][j] = rand()%20-10;
        cout<<mas[i][j]<<"\t";
        if (i<=j&&mas[i][j]>0) sum+=mas[i][j];
        }
    cout<<endl;
}
    cout<<"Summa="<<sum<<endl;
getchar();
}