#include <bits/stdc++.h>
#include <atcoder/all>
#include <boost/multiprecision/cpp_dec_float.hpp>
#include <boost/multiprecision/cpp_int.hpp>
namespace mp = boost::multiprecision;
using Bint = mp::cpp_int;
using namespace std;
using namespace atcoder;
#define rep(i, n) for(int i=0;i<(n);++i)
#define rep1(i, n) for(int i=1;i<=(n);i++)
#define ll long long
using mint = modint998244353;
using P = pair<ll,ll>;
using lb = long double;
using T = tuple<ll, ll, ll>;
#ifdef LOCAL
#  include <debug_print.hpp>
#  define dbg(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#  define dbg(...) (static_cast<void>(0))
#endif

int main()
{
    int n;
    cin >> n;
    stack<pair<int,int>> st;
    st.emplace(2e9,0);
    int ans = 0;
    rep(i,n) {
        int h;
        cin >> h;
        int now = 0;
        while(st.top().first<=h) {
            int nxt = st.top().first;
            int id = st.top().second;
            st.pop();
            if(id==1) ans -= nxt-now;
            now = nxt;
        }
        if(i%2==1) {
            if(st.top().second==1) {
                st.emplace(h,0);
                ans -= h-now;
            }
        }
        else{
            if(st.top().second==0) {
                st.emplace(h,1);
                ans += h;
            }
            else{
                ans+=now;
            }
        }
        cout << ans << endl;
        dbg(st);
    }
    return 0;
}