Int main()

{

int a,b,c,d,ru,rd;

char ch = 'n';

do

{

cin >> a;

cin >> b;

cin >> ch;

cin >> ch;

cin >> c;

cin >> d;

switch (ch)

{

case '+':

ru = a*d+b*c;

rd = d*b;

break;

case '-':

ru = a*d+b*c;

rd = d*b;

break;

case '*':

ru = a*c;

rd = d*b;

break;

case '/':

ru = a*d;

rd = b*c;

break;

}

cout << "res = “ << ru << “/” << rd << “/n”;

cout << "Continue? Y/N\n";

ch = getch();

} while (ch != 'n' && ch!= 'N');

return 0;

}