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/*
 * Created by Mieszko Mazurek
 * on 29.09.2015
 */


#include <stdio.h>



#define __inline__ 		__attribute__((always_inline)) inline

#define getchar()			getc_unlocked(stdin)

#define putchar(c) 		putc_unlocked(c, stdout)

#define UINT_MAX 			0xFFFFFFFF

#define uint unsigned int


__inline__
void writeuint(uint val)
{
	static char buffer[16];
	register uint len, c;
	
	len = 0;
	
	while (val) {
		c = val % 10 + '0';
		
		buffer[len++] = c;
		
		val /= 10;
	}
		
	while(len)
		putchar(buffer[--len]);
}


__inline__
void writeuintln(uint val)
{
	writeuint(val);
	putchar('\n');
}


__inline__
uint readuint()
{
	uint val;
	char c;
	

	do c = getchar();	
	while (c < '0' || c > '9');

	val = c - '0';
	c = getchar();

	while (c >= '0' && c <= '9') {
		val *= 10;
		val += c - '0';
		
		c = getchar();
	}
	
	return val;
}



int main(int argc, char** argv)
{
	register uint n, sum, bank;
	auto uint minodd;
	
	minodd = UINT_MAX;
	sum = 0;

	
	n = readuint();
	
	while (n --> 0) {
		bank = readuint();
		
		sum += bank;
		
		if (bank & 1 && bank < minodd)
			minodd = bank;
	}
	
	
	
	if (sum & 1)
		if (minodd < UINT_MAX)
			sum -= minodd;
		else
			sum = 0;
	
	if (sum) {
		writeuint(sum);
		putchar('\n');
	}
	else
		puts("NIESTETY\n");

	return 0;
}