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

int main()
{
	//Need {curly braces} around the body of this loop:

	for (int i {0}; i < 10; ++i) {
		//Draw a box around each number.
		cout << "+---+\n";
		cout << "| " << i << " |\n";
		cout << "+---+\n\n";
	}

	//Don't need {curly braces} around the body of this loop:

	for (int i {0}; i < 10; ++i) {
		cout << i << "\n";
	}

	cout << "\n";

	//So you could write the above loop as follows:
	for (int i {0}; i < 10; ++i)
		cout << i << "\n";

	return EXIT_SUCCESS;
}