#include<iostream>
#include<cstdio>
#define syy myson
using namespace std;
const int maxn=100010;
int n,a[maxn],num,m,x,y,i;
char fuck[3];
int lowbit(int x)
{
	return x&(-x);
}
void Add(int p,int x)
{
	while(p<=n)
	{
		a[p]+=x;
		p+=lowbit(p);
	}
}
int Query(int p)
{
	int res=0;
	while(p>0)
	{
		res+=a[p];
		p-=lowbit(p);
	}
	return res;
}
int Main()
{
	freopen("shulie.in","r",stdin);freopen("shulie.out","w",stdout);
	scanf("%d",&n);
	for(i=1;i<=n;i++)
	{
		scanf("%d",&num);
		Add(i,num);
	}
	scanf("%d",&m);
	for(i=1;i<=m;i++)
	{
		scanf("%s%d%d",&fuck,&x,&y);
		if(fuck[0]=='A')
			Add(x,y);
		else
			printf("%d\n",Query(y)-Query(x-1));
	}
	return 0;
}
int main(){;};
int syy=Main();