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
#include <iostream>                                                                                                                                                                
typedef unsigned int uint32;                                                                                                                                                       
                                                                                                                                                                                   
int main()                                                                                                                                                                         
{                                                                                                                                                                                  
    uint32 n;                                                                                                                                                                      
    std::cin >> n;                                                                                                                                                                 
                                                                                                                                                                                   
    uint32 sum = 0, minodd = 12345; //12345 > 1000                                                                                                                                 
    while (n--)                                                                                                                                                                    
    {                                                                                                                                                                              
        uint32 x;                                                                                                                                                                  
        std::cin >> x;                                                                                                                                                             
        sum += x;                                                                                                                                                                  
        if (x & 1 && x < minodd)                                                                                                                                                   
        {                                                                                                                                                                          
            minodd = x;
        }
    }
    if (sum & 1)
    {
        sum -= minodd;
    }
    if (sum)
    {
        std::cout << sum << std::endl;
    }
    else
    {
        std::cout << "NIESTETY" << std::endl;
    }
}