#include<bits/stdc++.h>
using namespace std;
#define int long long
void solve(){
int n, m, d; cin >> n >> m >> d;
if(m <= 20){
vector<int> a(n + 1);
for(int i = 1; i <= n; i++) cin >> a[i];
auto check = [&](int x){
long double y = x;
vector<long double> cur(a.size(), 0);
cur[0] = -1e15;
for(int i = 1; i < a.size(); i++){
cur[i] = max(a[i] - y / 2, cur[i - 1] + d);
if(cur[i] > a[i] + y / 2) return false;
}
return true;
};
for(int i = 1; i <= m; i++){
int x; cin >> x;
a.push_back(x);
sort(a.begin() + 1, a.end());
int l = 0, r = 1e16, ans = 1e16;
while(l <= r){
int mid = (l + r) / 2;
if(check(mid)) ans = mid, r = mid - 1;
else l = mid + 1;
}
cout << ans / 2;
if(ans & 1) cout << ".5";
cout << " ";
}
}
}
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
solve();
}
