#include <iostream>
using namespace std;

int main ()
{
    int a,b,c=0,n;
    cin>>a>>b;
       for(int i=1;i<=a;i++)
    {
       cin>>n;
       if(n%10==b)
          c+=n;
    }
       
       cout<<c;
     
    return 0;
}

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