1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
#include <cstdio>
#include <algorithm>
#define REP(x,n) for(int x=0;x<(n);++x)

int main() {
	int n, suma=0, min_nparz=1001, lb;
	scanf("%d", &n);
	if(n==1) {
		scanf("%d",&lb);
		if(lb&1)
			puts("NIESTETY");
		else
			printf("%d\n", lb);
	} else {
		REP(x,n) {
			scanf("%d", &lb);
			if((lb&1) && lb<min_nparz)
				min_nparz = lb;
			suma += lb;
		}
		if(suma&1)
			suma -= min_nparz;
		printf("%d\n", suma);
	}
	return 0;
}