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

int main()
{
	int a[] {     //An array of 12 ints.  Square brackets are empty.
		31,   // 0 January
		28,   // 1 February
		31,   // 2 March
		30,   // 3 April
		31,   // 4 May
		30,   // 5 June
		31,   // 6 July
		31,   // 7 August
		30,   // 8 September
		31,   // 9 October
		30,   //10 November
		31    //11 December (no comma)
	};

	//Could have created the entire array all on one line:
	//int a[] {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

	//Here are the 12 variables we just created.
	//I wish we could output them with a loop.

	cout <<  a[0] << "\n";   //The value of  a[0] is 31, for January.
	cout <<  a[1] << "\n";   //The value of  a[1] is 28, for February.
	cout <<  a[2] << "\n";   //The value of  a[2] is 31, for March.
	cout <<  a[3] << "\n";   //The value of  a[3] is 30, for April.
	cout <<  a[4] << "\n";   //The value of  a[4] is 31, for May.
	cout <<  a[5] << "\n";   //The value of  a[5] is 30, for June.
	cout <<  a[6] << "\n";   //The value of  a[6] is 31, for July.
	cout <<  a[7] << "\n";   //The value of  a[7] is 31, for August.
	cout <<  a[8] << "\n";   //The value of  a[9] is 30, for September.
	cout <<  a[9] << "\n";   //The value of a[10] is 31, for October.
	cout << a[10] << "\n";   //The value of a[11] is 30, for November.
	cout << a[11] << "\n";   //The value of a[12] is 31, for December.

	//Subscript out of bounds causes unpredictable behavior,
	//possibly crashing the program.  Don't do this!

	//cout << a[12] << "\n"; //Subscript too big:   there is no a[12].
	//cout << a[-1] << "\n"; //Subscript too small: there is no a[-1].

	return EXIT_SUCCESS;
}