#include<bits/stdc++.h>
#define range(i,a,b) for(int i = (a); i < (b); i++)
#define rep(i,b) for(int i = 0; i < (b); i++)
#define all(a) (a).begin(), (a).end()
#define show(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;
const int INF = 2000000000;
using namespace std;

const int MAX_N = 1 << 17;

//セグメントツリーを持つ配列
int n;
pair<int, int> dat[2 * MAX_N - 1];

void init(int n_){
    n = 1;
    while(n < n_) n *= 2;
    rep(i,2 * n - 1) dat[i].first = 0;
}

void update(int k, int a, int b){
    //葉の節点
    k += n - 1;
    dat[k].first = a;
    dat[k].second = b;
    //登りながら更新
    while(k > 0){
        k = (k - 1) / 2;
        if(dat[k * 2 + 1].first > dat[k * 2 + 2].first){
            dat[k] = dat[k * 2 + 1];
        }else if(dat[k * 2 + 1].first < dat[k * 2 + 2].first){
            dat[k] = dat[k * 2 + 2];
        }
    }
}

//[a, b)の最小値を求める
//query(a, b, 0, 0, n)
pair<int, int> query(int a, int b, int k, int l, int r){
    //cout << a << ' ' << b << ' ' << k << ' ' << l << ' ' << r << endl;
    //[a, b) と[l, r)が交差しなければ、INT_MAX
    if(r <= a || b <= l) return make_pair(0,-1);

    //[a,b)が[l,r)を完全に含んでいれば、この節点の値
    if(a <= l && r <= b) return dat[k];
    else{
        //そうでなければ、２つのこの最小値
        pair<int, int> vl = query(a, b, k * 2 + 1, l, ( l + r) / 2);
        pair<int, int> vr = query(a, b, k * 2 + 2, (l + r) / 2, r);
        if(vl.first > vr.first) return vl;
        else return vr;
    }
}

int main(){
    int nn, d, k;
    int x[100005];
    cin >> nn >> d >> k;
    init(nn);
    rep(i,nn){
        cin >> x[i];
        update(i,x[i],i);
    }
    long long maxi = 0;
    pair<int, int> day;
    rep(i,nn){
        pair<int, int> p;
        int dif;
        p = query(i,min(i + d + 1,n), 0, 0, n);
        //show(i + d) show(p.second)
        dif = p.first - x[i];
        if(dif > maxi){
            //show(i) cout << p.first << ' ' << p.second << endl;
            maxi = dif;
            day.first = i;
            day.second = p.second;
        }
    }
    cout << k * maxi << endl;
    if(k * maxi > 0) cout << day.first << ' ' << day.second << endl;
}