#include<cstdio>
#define int long long
struct node{
	int first,last,sum,addtag,multag;
	bool flag;
	node(void){
		first=0;
		last=0;
		sum=0;
		addtag=0;
		multag=0;
		flag=false;
	};
};
node tree[400004];
inline void pushdown(int root){
	if(tree[root].flag){
		tree[root<<1].addtag+=tree[root].addtag;
		tree[root<<1].multag+=tree[root].multag;
		tree[root<<1].flag=true;
		tree[root<<1|1].addtag+=tree[root].addtag+(tree[root<<1|1].first-tree[root<<1].first)*tree[root].multag;
		tree[root<<1|1].multag+=tree[root].multag;
		tree[root<<1|1].flag=true;
	};
	tree[root].flag=false;
	tree[root].addtag=0;
	tree[root].multag=0;
	return;
};
inline void build(int root,int first,int last){
	tree[root].first=first;
	tree[root].last=last;
	if(first==last){
		scanf("%lld",&tree[first].sum);
		return;
	};
	int middle=first+last>>1;
	build(root<<1,first,middle);
	build(root<<1|1,middle+1,last);
	return;
};
inline void change(int root,int first,int last,int addtag,int multag){
	if(first<=tree[root].first&&tree[root].last<=last){
		tree[root].flag=true;
		tree[root].addtag+=addtag+(tree[root].first-first)*multag;
		tree[root].multag+=multag;
		return;
	};
	pushdown(root);
	int middle=tree[root].first+tree[root].last>>1;
	if(first<=middle){
		change(root<<1,first,last,addtag,multag);
	};
	if(middle<last){
		change(root<<1|1,first,last,addtag,multag);
	};
	return;
};
inline int query(int root,int found){
	if(tree[root].first==tree[root].last){
		tree[root].sum+=tree[root].addtag;
		tree[root].addtag=0;
		tree[root].multag=0;
		return tree[root].sum;
	};
	pushdown(root);
	int middle=tree[root].first+tree[root].last>>1;
	if(found<=middle){
		return query(root<<1,found);
	};
	return query(root<<1|1,found);
};
signed main(signed argc,char **argv){
	int size,action;
	scanf("%lld %lld",&size,&action);
	build(1,1,size);
	do{
		int symbol;
		scanf("%lld",&symbol);
		if(symbol==1){
			int first,last,addtag,multag;
			scanf("%lld %lld %lld %lld",&first,&last,&addtag,&multag);
			change(1,first,last,addtag,multag);
		}else{
			int found;
			scanf("%lld",&found);
			printf("%lld\n",query(1,found));
		};
	}while(--action);
	return 0;
};