#include<iostream>

using namespace std;

//main formula =

//! (a+b+c)^3 = a^3 + b^3 + c^3 + 3a^2b + 3a^2c + 3ab^2 +

//! 3b^2c + 3ac^2 + 3bc^2 + 6abc

void step_1_printing_process_fn()

{

cout << "The main formula: ";

cout << "(a+b+c)^3 = a^3 + b^3 + c^3 + 3a^2b + 3a^2c + 3ab^2 + 3b^2c + 3ac^2 + 3bc^2 + 6abc ";

}

void step_2_printing_process_fn(int a,int b,int c,int a_square,int b_square, int c_square, int a_cube,int b_cube,int c_cube,int main_result)

{

cout << endl << "step 2 printing process,"<<endl;

cout<<"(a+b+c)^3 ="<<a<<"^"<<"3"<< "+" <<b<<"^"<<"3"<< "+" <<c<<"^"<<"3"; cout << endl;

cout << " + " <<" 3*"<<a<<" ^2"<<" * "<<b<<" + "<<"3*"<<a<<" * "<<b<<"^2"; cout << endl;

cout << " + " <<" 3*"<<b<<" ^2"<<" * "<<c<<" + "<<"3*"<<b<<" * "<<c<<"^2"; cout << endl;

cout << " + " <<" 3*"<<a<<" ^2"<<" * "<<c<<" + "<<"3*"<<a<<" * "<<c<<"^2"; cout << endl;

cout << " + " <<" 6*"<<a<<"*"<<b<<"*"<<c <<" = "<< main_result;

}

void step_3_printing_process_fn(int a,int b,int c,int a_square,int b_square, int c_square, int a_cube,int b_cube,int c_cube,int main_result)

{

cout << endl<< endl << "step 3 printing process,"<<endl;

cout <<"("<<a<<"^3"<<" + "<<a<<"^3"<<" + "<<b<<"^3"<<" + "<<c<<"^3"<<" + "<<")"<<endl;

cout << " + " <<" (3*"<<a<<" ^2"<<" * "<<b<<") + ("<<"3*"<<a<<" * "<<b<<"^2)"; cout << endl;

cout << " + " <<" (3*"<<b<<" ^2"<<" * "<<c<<") + ("<<"3*"<<b<<" * "<<c<<"^2)"; cout << endl;

cout << " + " <<" (3*"<<a<<" ^2"<<" * "<<c<<") + ("<<"3*"<<a<<" * "<<c<<"^2)"; cout << endl;

cout << " + (" <<" 6*"<<a<<"*"<<b<<"*"<<c<<")" <<" = "<< main_result;

}

void step_4_printing_process_fn(int a,int b,int c,int a_square,int b_square, int c_square, int a_cube,int b_cube,int c_cube,int main_result)

{

cout << endl << endl << "step 4 printing process,"<<endl;

cout <<"("<<a<<"^3"<<" + "<<a<<"^3"<<" + "<<b<<"^3"<<" + "<<c<<"^3"<<" + "<<")"<<endl;

cout << " + " <<" (3*"<<a_square<<"*"<<b<<") + ("<<"3*"<<a<<"*"<<b_square <<")"; cout << endl;

cout << " + " <<" (3*"<<b_square<<"*"<<c<<") + ("<<"3*"<<b<<"*"<<c_square <<")"; cout << endl;

cout << " + " <<" (3*"<<a_square<<"*"<<c<<") + ("<<"3*"<<a<<"*"<<c_square <<")"; cout << endl;

cout << " + (" <<"6*"<<a<<"*"<<b<<"*"<<c<<")" <<")" <<" = "<< main_result;

}

void step_5_printing_process_fn(int a,int b,int c,int a_square,int b_square, int c_square, int a_cube,int b_cube,int c_cube,int main_result)

{

cout << endl << endl << "step 5 printing process,"<<endl;

cout <<"("<<a_cube+b_cube+c_cube<<")";

cout << " + (" <<3*a_square*b<<") + ("<<3*a*b_square <<")";

cout << " + (" <<3*b_square*c<<") + ("<<3*b*c_square <<")";

cout << " + (" <<3*a_square*c<<") + ("<<3*a*c_square <<")";

cout << " + (" <<6*a*b*c<<")" <<" = "<< main_result;

}

void step_6_printing_process_fn(int main_result)

{

cout << endl << endl << "Finally, result = " << main_result;

}

int main()

{

int a; int b; int c;

// ask user for the value of abc

cout << "Enter the value of abc," << endl;

cout << "Enter :"; cin >> a >> b >> c;

//generate power as cube

int a_cube = a*a*a;int b_cube = b*b*b; int c_cube = c*c*c;

//generate power as square

int a_square = a*a; int b_square = b*b; int c_square = c*c;

int main_ans = (a+b+c)*(a+b+c)*(a+b+c);

cout << endl;

step_1_printing_process_fn();

cout << endl;

step_2_printing_process_fn(a,b,c,a_square,b_square,c_square,a_cube,b_cube,c_cube,main_ans);

step_3_printing_process_fn(a,b,c,a_square,b_square,c_square,a_cube,b_cube,c_cube,main_ans);

step_4_printing_process_fn(a,b,c,a_square,b_square,c_square,a_cube,b_cube,c_cube,main_ans);

step_5_printing_process_fn(a,b,c,a_square,b_square,c_square,a_cube,b_cube,c_cube,main_ans);

step_6_printing_process_fn(main_ans);

return 0;

}