#include <iostream>
#include <string>
using namespace std;

int main()
{
	//Quiz:  Write a program that asks
	//user to enter a number, then counts up by 10's (starting at 0)
	//up to that number.  Submit to blackboard by 12:40
	//quiz is called quiz-9-8 in blackboard.

	//Example 1: 
	//Enter a number:
	// 100
	//Cool: 0 10 20 30 40 50 60 70 80 90 100

	//Example 2: 
	//Enter a number:
	// 37
	//Cool: 0 10 20 30

	cout << "Enter a number: " << endl;
	int num;
	cin >> num;

	for (int i = 0; i <= num; i = i + 10)
	{
		cout << i << " ";
	}



	//challenge 1:
	//display product of 1*2*3*4*...*10
	//In other words, 10!
	int product = 1;
	for (int i = 1; i <= 10; i++)
	{
		product = product * i;
	}
	cout << "10 factorial is: " << product << endl;

	//challenge 2: Ask user to enter their name
	//in all lowercase letters.
	//Print name entered, but vertically
	cout << "Please enter name in all lowercase: " << endl;
	string name;
	cin >> name;

	cout << "Cool, here is your name, but vertically: " << endl;
	for (int i = 0; i < name.length(); i++)
	{
		cout << name[i] << endl;
	}

	//challenge 3: print name user entered, but backwards.
	cout << "Here is your name, but backwards: " << endl;
	for (int i = name.length(); i >= 0; i = i - 1) //i-- is same thing
	{
		cout << name[i];
	}

	cout << endl;
	cout << endl;

	//challenge 4:
	//Print the name they entered, but in all capital letters.
	for (int i = 0; i < name.length(); i++)
	{
		name[i] = name[i] - 32;
	}

	cout << "Here is your name, but in all upper case: " << endl;
	cout << name << endl;

	return 0;
}