#include<iostream>
#include<cstdio>
#include<cctype>
#define maxn 100001
#define gys mylove
using namespace std;
int n,m,a,k,d,l,r;
char s[5];
int t[maxn];
inline void in(int &x)
{
    x=0;int f=1;char t=getchar();
    while(!isdigit(t)){if(t=='-')f=-1;t=getchar();}
    while(isdigit(t)){x=x*10+t-48;t=getchar();}
    x*=f;
}
int lowbit(int x){
	return x&(-x);
}
void add(int x,int p){
	while(p<=n){
		t[p]+=x;
		p+=lowbit(p);
	}
}
int sum(int p){
	int s=0;
	while(p>0){
		s+=t[p];
		p-=lowbit(p);
	}
	return s;
}
inline void work(){
	in(n);
	for(int i=1;i<=n;i++){
		in(a);add(a,i);
	}
	in(m);
	for(int i=1;i<=m;i++){
		scanf("%s",&s);
		if(s[0]=='A'){
			in(k);in(d);add(d,k);
		}
		else{
			in(l);in(r);
			printf("%d\n",sum(r)-sum(l-1));
		}
	}
}
inline int Main(){
	freopen("shulie.in","r",stdin);
	freopen("shulie.out","w",stdout);
	work();
	return 0;
}
int main(){;}
int gys=Main();