#include<iostream>
#include<algorithm>
using namespace std;


#define INF (1<<30)

class Sequence{//AVLTree
	struct Node{
		int height;
		Node *left,*right;
		int size;
		int index,added;
		int val,minsub;
		
		Node(int k,int v)
			:height(1),index(k),added(0),left(0),right(0),size(1),val(v),minsub(v){}
		~Node(){
			if(left)delete left;
			if(right)delete right;
		}
		Node *rotate_right(){
			Node *s=left;
			int b=s->added,d=added;
			s->added += d;
			if(s->right)s->right->added += b;
			added += -b-d;
			left=s->right;
			s->right=this;
			return s;
		}
		Node *rotate_left(){
			Node *s=right;
			int b=s->added,d=added;
			s->added += d;
			if(s->left)s->left->added += b;
			added += -b-d;
			right=s->left;
			s->left=this;
			return s;
		}
		Node *insert(int k,int v){
			if(!this)return new Node(k,v);
			k-=added;
			if(k < index){
				left = left->insert(k,v);
			}else {//key < k
				right = right->insert(k,v);
			}
			return balance();
		}
		bool find(int k){
			if(!this)return false;
			k-=added;
			return k==index?
				true:k<index?left->find(k):right->find(k);
		}
		Node *erase(int k){
			if(!this)return NULL;
			k-=added;
			if(k==index){
				int a=added;
				Node *le=left,*ri=right;
				left=right=NULL;
				delete this;
				if(!le){
					if(ri)ri->added+=a;
					return ri;
				}
				if(!ri){
					if(le)le->added+=a;
					return le;
				}
				Node *t;
				le = le->erase_max(&t,a,a);
				t->left = le;
				t->right = ri;
				return t->balance();
			}
			if(k < index){
				left = left->erase(k);
			}else if(index < k){
				right = right->erase(k);
			}
			return balance();
		}
		int min(int a,int b,int l,int r,int s)const{
			if(!this || r<a || b<l)return INF;
			if(a<=l && r<=b)return minsub;
			s += added;
			int i=index+s;
			int res=a<=i&&i<=b?val:INF;
			res = std::min(res,left->min(a,b,l,i-1,s));
			res = std::min(res,right->min(a,b,i+1,r,s));
			return res;
		}
		void substitute(int k,int v){
			k -= added;
			if(k==index){
				val=v;
			}
			if(k < index){
				left->substitute(k,v);
			}else if(index < k){
				right->substitute(k,v);
			}
			updates();
		}
		
		
		void add_ge(int k,int v){
			if(!this)return;
			k-=added;
			if(k <= index){
				added += v;
				if(left){
					left->added -= v;
					left->add_ge(k-v ,v);
				}
			}else{
				right->add_ge(k,v);
			}
		}
		Node *balance(){
			int bf = (right?right->height:0)-(left?left->height:0);
			if(2==bf){
				Node *t=right;
				if((t->right?t->right->height:0) < (t->left?t->left->height:0)){
					right = t->rotate_right();
				}
				return rotate_left()->update();
			}else if(bf==-2){
				Node *t=left;
				if((t->right?t->right->height:0) > (t->left?t->left->height:0)){
					left = t->rotate_left();
				}
				return rotate_right()->update();
			}
			updates();
			return this;
		}
		Node *update(){
			if(left)left->updates();
			if(right)right->updates();
			updates();
			return this;
		}
		void updates(){
			update_height();
			update_size();
			update_min();
		}
		void update_height(){
			if(!this)return;
			if(right){
				if(left && right->height < left->height)height=left->height+1;
				else height=right->height+1;
			}else if(left)height=left->height+1;
			else height=1;
		}
		void update_size(){
			if(!this)return;
			size = 1 + (left?left->size:0) + (right?right->size:0);
		}
		void update_min(){
			if(!this)return;
			minsub = val;
			if(left)minsub=std::min(minsub,left->minsub);
			if(right)minsub=std::min(minsub,right->minsub);
		}
		Node* erase_max(Node **maxnode,int add,int s){
			s += added;
			if(right){
				right = right->erase_max(maxnode,add,s);
				return balance();
			}else{
				*maxnode=this;
				if(left)left->added += added;
				index = index+s-add;
				added = add;
				return left;
			}
		}
	} *root;
public:
	Sequence():root(0){}
	~Sequence(){if(root)delete root;}
	void insert(int k,int v){
		root->add_ge(k,1);
		root=root->insert(k,v);
	}
	void erase(int k){
		root=root->erase(k);	
		root->add_ge(k,-1);
	}
	int min(int a,int b)const{
		return root->min(a,b,0,root->size-1,0);
	}
	void substitute(int k,int v){
		root->substitute(k,v);
	}
};


int main(){
	int n,q;
	Sequence seq;
	cin>>n>>q;
	for(int i=0;i<n;i++){
		int a;
		cin>>a;
		seq.insert(i,a);
	}
	for(int i=0;i<q;i++){
		int x,y,z;
		cin>>x>>y>>z;
		if(x==0){
			int v=seq.min(z,z);
			seq.erase(z);
			seq.insert(y,v);
		}else if(x==1){
			cout<<seq.min(y,z)<<endl;
		}else{
			seq.substitute(y,z);
		}
	}
	return 0;
}

Measured memory_bytes: 13720