// UUID: a99008c9-a9bc-42e5-92ac-6710d4546031
#include <bits/stdc++.h>
using namespace std;

int main() {
	int n, x;
    cin >> n >> x;

    vector <int> itemek(n);
    for(int i = 0; i < n; i++)
        cin >> itemek[i];
    
    int maradek = 0;
    for(int i = 0; i < n; i++)
        maradek += itemek[i] % x;

    int egesz = 0;
    for(int i = 0; i < n; i++)
        egesz += itemek[i] / x;
    
    if(egesz <= maradek)
        {
            cout << egesz;
            return 0;
        }
    else
        while(egesz <= maradek)
            {
                egesz--;
                maradek += x;
            }
    cout << egesz;
}