#include <bits/stdc++.h>
using namespace std;
int a[100001];
int main(){
	int n,sum=0;
	cin >> n;
	for(int i =1;i<+n;i++){
		cin >> a[i];
	}
	for(int i =1;i<=n;i++){
		if(i==1){
			sum+=(a[i]-1)*6+6;
		}else{
			if(a[i-1]>a[i]){
				sum+=(a[i-1]-a[i])*4+6;
			}else{
				if(a[i-1]==a[i]){
					sum+=1;
				}else{
					sum+=(a[i]-a[i-1])*6+6;
				}
			}
		}
		cout << sum<< endl;
	}
	cout << sum;
	return 0;
}