#include<stdio.h>
#include<string.h>

int main()
{
	int n,a[100],b[100],i,j,k,x,y,noofodd=0,noofeven=0,ans=0;

	scanf("%d",&n);

	for(i=0;i<n;i++)  // find no of odd and evens
	{
	    scanf("%d",&a[i]);
		if(a[i]%2==0)
			noofeven++;
		else
			noofodd++;
	}

	for(x=0; x<n; x++) //sort in asc order
		for(y=0; y<n-1; y++)
			if(a[y]>a[y+1])
			{
				int temp = a[y+1];
				a[y+1] = a[y];
				a[y] = temp;
			}

	if(noofeven==n) //if all evens
		ans=0;
	else if(noofodd==n && n%2==0) // if all odd and noofflowers is even
		{
			for(i=1;i<n;i++)
				ans=ans+a[i];
		}
	else if(noofodd==n && n%2!=0) // if all odd and noofflowers is odd
		{
			for(i=0;i<n;i++)
				ans=ans+a[i];
		}
	else                           //else
		{
			for(i=1;i<n;i++)
				ans=ans + a[i];
			if(ans%2!=0 && a[0]%2!=0)
				{
					ans=ans+0;
				}
			else if(ans%2!=0 && a[0]%2==0)
				{
					ans=ans+a[0];
				}
			else if(ans%2==0 && a[0]%2!=0)
				{
					ans=ans+a[0];
				}
			else if(ans%2==0 && a[0]%2==0)
				{
					ans=ans+a[0];
					for(i=1;i<n;i++)
						if(a[i]%2!=0)
							{ans=ans-a[i];break;}
				}


		}
printf("%d",ans);

return 0;
}