1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
#include <stdio.h>

int n,a;
int minodd = 1001;
int sum = 0;

int main(){
  scanf("%d",&n);
  for(int i=0;i<n;++i){
    scanf("%d",&a);
    sum += a;
    if(a%2==1 && a < minodd) minodd = a;
  }
  if (sum%2==0) printf("%d\n",sum);
  else
    if( n > 1 ) printf("%d\n",sum-minodd);
    else puts("NIESTETY");
  return 0;
}