#include
using std::cout;
using std::endl;
int main() {
cout << 1 + 2 << endl;
cout << 1 - 5 << endl;
cout << 1 - 2 << endl;
cout << 1 * 2 << endl;
cout << 1/3 << endl;
cout << 1 3 << endl;
cout << 1 -3 << endl;
cout << -1 3 << endl;
cout << -1 -3 << endl;
cout << 1 + 2/1 - 5 << endl;
cout << (1 + 2)/(1 - 5) << endl;
cout << 1 + 2/(1 - 5) << endl;
cout << (1 + 2)/1 - 5 << endl;
cout << 4*5/3 + 7/3 << endl;
return 0;
}
3
-4
-1
2
0
1
-1
-2
0
1
-2
4