#include <iostream>
#include <iomanip>   //for the iomanipulator setw
#include <cstdlib>
using namespace std;

int main()
{
	int a[] {       //An array of 12 ints.
		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
	};

	int n {size(a)};   //the number of eements in the array

	int b[12] {};   //Born holding 12 zeros.
			
	//Copy all of the values in the array a into the array b,
	//wiping out the 12 zeros.
	for (int i {0}; i < n; ++i) {
		b[i] = a[i];
	}

	//Make sure that the 12 values got copied into b.
	for (int i {0}; i < n; ++i) {
		cout << setw(2) << i << "   " << b[i] << "\n";
	}

	return EXIT_SUCCESS;
}