#include <iostream> using namespace std; int main() { int a[10][10]; int sum = 0; for (int i = 1; i <= 4; i++) { for (int j = 1; j <= 4; j++) { cin >> a[i][j]; } } for (int i = 1; i <= 4; i++) { for (int j = 1; j <= 4; j++) { if (i1||i4||j1||j4) { sum+=a[i][j]; } } } cout << sum; return 0; }