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// Kieszonkowe.cpp : Defines the entry point for the console application.
//

// #include "stdafx.h"


#include <stdio.h>


int main(int argc, char * argv[])
{
// 	freopen("sample_input.txt",  "r", stdin);
// 	freopen("sample_output.txt", "w", stdout);

	int iCnt, iNom, iSmallestOdd, iSum = 0;

	bool fOddKnown = false;

	scanf("%d", &iCnt);

	for (int i = 0; i < iCnt; ++i)
	{
		scanf("%d", &iNom);

		iSum += iNom;

		if (iNom & 1)
			if (!fOddKnown || iNom < iSmallestOdd)
			{
				iSmallestOdd = iNom;
				fOddKnown = true;
			}
	}

	if (iSum & 1)
		iSum -= iSmallestOdd;

	if (iSum)
		printf("%d", iSum);
	else
		printf("NIESTETY");

	return 0;
}