#include <iostream>
using namespace std;
int main() {
cout << 23 + 6 << endl;
cout << 78 + 56 << endl;
cout << 65 - 56 << endl;
cout << 23 - 21 << endl;
cout << 5 * 6 << endl;
cout << 75 * 23 << endl;
cout << 72 / 9 << endl;
cout << 400 / 20 << endl;
return 0;
}
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