#include <iostream>
#include <fstream>

using namespace std;

ifstream inF("parties.in");
ofstream outF("parties.out");

int main()
{
    int n, d, parties=0, sum;
    inF>>n>>d;
    int* x = new int[n];
    bool* isPow = new bool[n];

    for(int i = 0; i<n; ++i)
    {
        inF>>x[i];
    }

    for(int i = 0; i<n; ++i)
    {
        sum=x[i];
        for(int k = 0; k<n; ++k)
        {
            if(k==i) continue;
            for(int j = 0; j<n; ++j)
            {
                if(j==i || j==k) continue;
                sum+=x[j];
                if(sum>=d && sum-x[i]<d)
                {
                    ++parties;
                    isPow[i]=true;
                    break;
                }
                else if(sum-x[j]>=d)
                {
                    sum-=x[j];
                }
            }
            if(isPow[i]) break;
        }

    }

    outF<<parties;

    outF.close();
    inF.close();

    delete[] x;
    delete[] isPow;

    return 0;
}