include [HTML_REMOVED]
include [HTML_REMOVED]
include [HTML_REMOVED]
include [HTML_REMOVED]
include [HTML_REMOVED]
using namespace std;
int main()
{
int x,y,sum=0;
cin>>x>>y;
if(x>y)
swap(x,y);//将大的数给y
for (int i = x+1; i < y; i ++ )//找出两数间(不包括他们本身)的奇数
{
if(i%2!=0)//判断是否为奇数
sum+=i;
}
cout<<sum;
return 0;
}