import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        TreeMap<Integer, Integer> blues = new TreeMap<>();
        int current = 0;
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < n; i++) {
            int value = sc.nextInt();
            if (i % 2 == 0) {
                if (blues.size() == 0 || blues.firstKey() > value) {
                    blues.put(0, value);
                    current += value;
                } else {
                    Integer key = 0;
                    while ((key = blues.higherKey(key)) != null) {
                        if (key > value) {
                            break;
                        }
                        current -= blues.get(key) - key;
                        value = Math.max(value, blues.get(key));
                        blues.remove(key);
                    }
                    current += value;
                    blues.put(0, value);
                }
            } else {
                Integer key = -1;
                while ((key = blues.higherKey(key)) != null) {
                    if (key >= value) {
                        break;
                    } else if (blues.get(key) > value) {
                        current -= blues.get(key) - key;
                        blues.put(value, blues.get(key));
                        blues.remove(key);
                        current += blues.get(value) - value;
                        break;
                    }
                    current -= blues.get(key) - key;
                    blues.remove(key);
                }
            }
            sb.append(current).append("\n");
        }
        System.out.print(sb);
    }
}

class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");

    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}