#include<iostream>
using namespace std;
int N,D;
main()
{
    cin>>N>>D;
    cout<<0;
    int S=0,P=0;
    for(int i=1;i<N;i++)
    {
        int A;cin>>A;
        S+=A;
        if(P+D<S)P=S;
        else P+=D;
        cout<<" "<<P;
    }
}