#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 200005;
int a[N],n,q;
signed main()
{
	ios::sync_with_stdio(false);
	freopen("whz_sequence.in","r",stdin);
	freopen("whz_sequence.out","w",stdout);
    cin>>n;
	for(int i=1;i<=n;i++)cin>>a[i];
    cin>>q;
	for(int i=1;i<=q;i++)
	{
		int op,lt,rt,d;
		cin>>op;
		if(op==1)
		{
			cin>>lt>>rt>>d;
			for(int j=lt;j<=rt;j++)a[j]+=d;
		}
		if(op==2)
		{
			cin>>lt>>rt;
			int s=0,c=1;
			for(int j=lt;j<=rt;j++)
			{
				s+=a[j]*c;
				c*=-1;
			}
			cout<<s<<endl;
		}
	}
	return 0;
}