GiGi兔的chocolate

#include<stdio.h>
int main()
{
   int n,m,k;
   while(scanf("%d %d %d",&n,&m,&k)!=EOF)
   {
      if (k<=m&&k<=n&&(k+n)%2==0)
        printf("YES\n");
        else
         printf("NO\n");
   }
   return 0;
}