#include <iostream>
#include <iomanip>

using namespace std;

void PrintBool( bool value);

int main() {
    bool a{true};
    bool b{true};
    bool result;
    int value;

    result = a and b;

    PrintBool(a);
    cout << " and ";
    PrintBool(b);
    cout << " = ";
    PrintBool(result);
    cout << endl;

    b = false;
    result = a and b;

    PrintBool(a);
    cout << " and ";
    PrintBool(b);
    cout << " = ";
    PrintBool(result);
    cout << endl;

    a = false;
    b = true;

    result = a and b;

    PrintBool(a);
    cout << " and ";
    PrintBool(b);
    cout << " = ";
    PrintBool(result);
    cout << endl;

    b = false;
    result = a and b;

    PrintBool(a);
    cout << " and ";
    PrintBool(b);
    cout << " = ";
    PrintBool(result);
    cout << endl;

    cout << endl << endl;
    a = true;
    b = true;
    result = a or b;

    PrintBool(a);
    cout << " or ";
    PrintBool(b);
    cout << " = ";
    PrintBool(result);
    cout << endl;

    b = false;
    result = a or b;

    PrintBool(a);
    cout << " or ";
    PrintBool(b);
    cout << " = ";
    PrintBool(result);
    cout << endl;

    a = false;
    b = true;

    result = a or b;

    PrintBool(a);
    cout << " or ";
    PrintBool(b);
    cout << " = ";
    PrintBool(result);
    cout << endl;

    b = false;
    result = a or b;

    PrintBool(a);
    cout << " or ";
    PrintBool(b);
    cout << " = ";
    PrintBool(result);
    cout << endl;

    cout << " doing a = value = 7" << endl;
    a = value = 7;
    PrintBool(a);
    cout << endl;
    cout << endl;

    cout << "Before if value = " <<  value << endl;
    if ( value == 42) {
       cout << " value = 42" << endl;
    }  
    cout << "After if  value = " <<  value << endl;
    cout << endl;

    cout << "Before if value = " <<  value << endl;
    if ( value = 42) {
       cout << " value = 42" << endl;
    }  
    cout << "After if  value = " <<  value << endl;
    
    return 0;
}

void PrintBool( bool value){
    if (value) {
        cout << "true";
    } else {
        cout << "false";
    }

    return;
}