Input and Output:
Example 1: example.cpp
#include<iostream>
using namespace std;
int main(){
    cout << "Hello World!!!";
    cout << "Hello C++!!!";
    cout << "Hello Our Class";
    return 0;
}
Output:
Example 2: example2.cpp
#include<iostream>
using namespace std;
int main(){
    cout << "Hello World!!!\n";
    cout << "Hello C++!!!\n";
    cout << "Hello Our Class\n";
    return 0;
}
Output:
Example 3: example3.cpp
#include<iostream>
using namespace std;
int main(){
    cout << "Hello World!!!" << endl;
    cout << "Hello C++!!!" << endl;
    cout << "Hello Our Class" << endl;
    return 0;
}
Output:
Example 4: example4.cpp
#include<iostream>
using namespace std;
int main(){
    cout << "Hello World!!!\t" << endl;
    cout << "\\Hello C++!!!" << endl;
    cout << "\"Hello Our Class" << endl;
    return 0;
}
Output:
Example 5: example5.cpp
#include<iostream>
#include<string>
using namespace std;
int main(){
    float price, total;
    int qty;
    cout << "Type Price: ";//Extraction Operator
    cin >> price; //Insertion Operator
    cout << "Type Qty: "; //Extraction Operator
    cin >> qty; //Insertion Operator
    total = price * qty; //Arithmetic Operator
    cout << "Total: " << total << endl;
    return 0;
}
Output: