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import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;

public class kie {

	private static int readInt(InputStream in) throws IOException {
		int ret = 0;
		boolean dig = false;
		for (int c = 0; (c = in.read()) != -1;) {
			if (c >= '0' && c <= '9') {
				dig = true;
				ret = ret * 10 + c - '0';
			} else if (dig) {
				break;
			}
		}
		return ret;
	}

	public static void main(String[] args) throws IOException {
		BufferedInputStream bis = new BufferedInputStream(System.in);

		long wynik = 0l;
		long maxValue = 1000l;
		long minOdd = maxValue;
		long n = readInt(bis);
		for (int i = 1; i <= n; i++) {
			long lTmp = readInt(bis);
			if ((lTmp & 1) != 0 && minOdd > lTmp) {
				minOdd = lTmp;
			}
			wynik += lTmp;
		}

		if ((wynik & 1) != 0) {
			if (minOdd != maxValue) {
				wynik -= minOdd;
			}
		}
		System.out.print((wynik > 0 ? "" + wynik : "NIESTETY"));
	}
}