#include<bits/stdc++.h>
using namespace std;

const int nmax=1e5+42;

int n,m,a,b;

pair<long long,long long> inp[nmax];

long long score=0;

vector<int> outp;

bool been[nmax];

set<int> in={};

void easy_greedy()
{
    for(int i=1;i<=n;i++)in.insert(i);

    sort(inp+1,inp+n+1);

    pair<long long,long long> cur={0,1*b};
    int id=0;

    for(int i=1;i<=m;i++)
    {
        int best=-1;
        long long dist=1e18;

        set<int>::iterator where=in.lower_bound(id);

        set<int>::iterator now=where;

        while(now!=in.end())
        {
            int j=*now;

            long long d=abs(cur.first-inp[j].first)+abs(cur.second-inp[j].second);

            if(d<dist)
            {
                //cout<<j<<" -> "<<d<<endl;

                dist=d;
                best=j;
            }

            if(inp[j].first-cur.first>=dist)break;

            now++;
        }

        now=where;

        while(1)
        {
            int j=*now;

            long long d=abs(cur.first-inp[j].first)+abs(cur.second-inp[j].second);

            if(d<dist)
            {
                //cout<<j<<" -> "<<d<<endl;

                dist=d;
                best=j;
            }

            if(cur.first-inp[j].first>=dist)break;

            if(now==in.begin())break;

            now--;
        }

        score+=dist;
        been[best]=1;

        outp.push_back(inp[best].second/b);

        cur=inp[best];
        id=best;

        //cout<<i<<" "<<best<<" "<<dist<<" "<<inp[best].first<<" "<<inp[best].second<<endl;

        in.erase(id);
    }
}

int main()
{
    //freopen("cheating_100000.out","r",stdin);

    freopen("cheating.in","r",stdin);
    freopen("cheating.out","w",stdout);

    scanf("%i%i%i%i",&n,&m,&a,&b);

    for(int i=1;i<=n;i++)
    {
        scanf("%lld",&inp[i].first);
        inp[i].first=inp[i].first*a;
        inp[i].second=1LL*i*b;
    }

    easy_greedy();

    //printf("%lld\n",score);

    for(int i=0;i<m;i++)
    {
        printf("%i",outp[i]);

        if(i==m-1)printf("\n");
        else printf(" ");
    }
    return 0;
}
/*
10 8 3 4
14 15 12 6 11 8 5 14 9 7
*/