#include <iostream>

using namespace std;
int main()
{
    int a,b,c;

    short d = 10.5;

    cout << "a : " << a << endl << "b : " << b << endl << "c : " << c << endl;
    cout << "a : " << &a << endl << "b : " << &b << endl << "c : " << &c << endl;

    cout << d << endl;

    float f = 10.456666666666; // 4 bytes upto 38 zeroes
    double dd = 10.45555555555555555555; // 8 bytes upto 308 zeroes


    cout << f << endl;
    cout << dd << endl;

    char t = 'a';

    cout << t << endl;

    string str1 = "Hello world!\n";
    string str2 = "Welcome";

    cout << str1 + str2 << endl;

    // boolean types true or false
    bool boolean = true; // 1 - true, 0 - false

    cout << boolean << endl;


    // for unsigned short int
    unsigned short us = 65535;

    cout << us << endl;


    // constants
    const int con = 100;

    cout << con << endl;

    return 0;
}