I want to draw a clear flowchart for this codes

int main()

{

// Display the calculation

int num_1,num_2; // Display the num_1 and num_2

char mathCalculation ='M'||'m'||'D'||'d'||'A'||'a'||'S'||'s'||'L'||'s'; // Display the math calculation

cout << "Enter the num_1:"; // ask the user to input the num_1

cin >> num_1;

cout << "Enter the num_2:"; // ask the user to input the num_2

cin >> num_2;

cout << "For Multiplication:M or m For Division:D or d For Addition:A or a For Subtraction:S or s For modulus:L or ";

cout<<" Enter the math operation:"; // ask the user to input the math calculation

cin >> mathCalculation;

switch(mathCalculation)

{

case 'M':

case 'm':

cout << "Multiplication =" << num_1*num_2;

break;

case'D':

case'd':

cout << "Division =" << num_1/num_2;

break;

case'A':

case'a':

cout << "Addition =" << num_1+num_2;

break;

case'S':

case's':

cout << "Subtraction =" << num_1-num_2;

break;

case'L':

case'l':

cout << "modulus =" << num_1%num_2;

break;

default:

cout << "Error! The calculation is not correct";

}

return 0;

}