#include<iostream> 
using namespace std;
int main()
{
	int n,k,a,sum = 0;
	cin>>n>>k;
	for(int i=1;i<=n;i++)
	{
		cin>>a;
		if(a%10 == k)
			sum += a;
	}
	cout<<sum<<endl;
	return 0;
}