#include <iostream>
using namespace std;

// This is a sample program illustrating basics we've seen so far
int main()
{
	char ch;				// declare variables 
	int value1, value2, x;  // this allocates memory

	// prompt for input - always nice to let the user know
	// what you expect 
	cout << "Please enter a character followed by 2 integers. " << endl;
	// the double quotes tells the computer I want the enclosed text
	// string written to the screen as is

	// the << symbol is called the insertion operator
	// we are inserting information into the output stream

	// the endl tells the computer to start a new line.  It is only used
	// with output.  It's like pressing the enter key while you're typing
	// try removing it along with its << insertion operator is see what 
	// happens

	// now we need to read in the data the user will enter at the keyboard
	// each variable you wish to read information into is preceeded by
	// an extraction operator >>

	cin >> ch >> value1 >> value2;
	// we could also have written this using 2 or 3 cin statements
	// try it out!

	// the user can enter the data with 1 or more spaces between items
	// they could also use tabs, carriage returns between items
	// the computer expects the user to enter a character 1st followed
	// by 2 integers because of the order they are written in the 
	// cin statement

	// Let's redisplay the data in our 3 variables
	cout << endl << "you entered the character " << ch << ", and the integers "
		 << value1 <<" and " << value2 << endl;

	// notice that there are no quotes around the variable names in a cout
	// statement.  this tells the computer to print the contents of the
	// variable - not its name.  If we put quotes around the names we would
	// be telling it to print out the names

	// placing another character into ch
	ch = 'w';
	cout << "ch now has charcter " << ch << endl;
	// lets sum value1 and value2
	cout << " the sum of " << value1 << " and " << value2 << " is: "
		 << value1 + value2 << endl;

	// another way we could have handled the sum
	x = value1 + value2;  // sum them and place into another variable
						  // this is good to do if you are going to use
						  // the calculated value again later in the program
	cout << " the sum of " << value1 << " and " << value2 << " is: "
		 << x << endl;

	// you'll see that the screen result looks the same to the user
	// in general, if we do need a calculation more than for 1 output
	// it's a good idea to save the result in a variable for later use.
	// That way you don't have to recalculate to get the result again.

	return 0;	
}