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
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
#include <cstdio>


int main( int argc, char* argv[] )
{
    int n;
    
    scanf("%d", & n );
    
    int s = 0;
    int smallest_odd = -1;
    
    for( int i = 0; i < n; ++i )
    {
        int a;
        scanf("%d", & a );
        
        s += a;
        
        if( ( a & 1 ) == 1 )
        {
            if( smallest_odd == -1 || a < smallest_odd ) 
            {
                smallest_odd = a;
            }                
        }                    
    }
    
    if( ( s & 1 ) == 0 ) 
    {
        printf( "%d\n", s );
    }
    else 
    {
        if( s == smallest_odd )
        {
            printf("NIESTETY\n");
        }
        else
        {
            printf("%d\n", s - smallest_odd );
        }
    }
    
    return 0;
}