#include<stdio.h>
#include<ctype.h>
int main()
{
    int n;
    /*int arr[i];
    scanf("%d \n%d",&n,&arr[i]);
    if(n<0 || arr[i]<0)
    {
        printf("Invalid Input");
    }
    if(i%2==0)
    {
        printf("%d ",i);
    }
    else if(i%2!=0)
    {
        printf("\n%d ",i);
    }
    
    return 0;
    */
    int m,a,b,c,d;
    scanf("%d \n%d %d %d %d %d",&n,&m,&a,&b,&c,&d);
    if(m%2==0){
        printf("%d",m);
    else{
        printf("\n%d",m);
    }
    }
}