#include <iostream>
#include <cstdlib>
#include <cassert>
#include <utility>
#include <tuple>
#include <ctime>
#include <cstdio>
#include <vector>
#include <algorithm>
#define loop(i,a,b) for(int i=(a);i<int(b);i++)
#define rep(i,n) loop(i,0,n)

using namespace std;

int const inf = 1e9;

unsigned int xor128(){
    static unsigned int x = 123456789, y = 362436069, z = 521288629, w = time(0);
    unsigned long t = x^(x<<11);
    x = y; y = z; z = w;
    return w = (w^(w>>19))^(t^(t>>8));
}

template<class T>
struct Node {
    T val;
    Node *ch[2];
    int pri, cnt;
    T min_;
    static Node *nil;
    Node(T v, int p) : val(v), pri(p), cnt(1), min_(v) { ch[0] = ch[1] = nil; }
    void *operator new(size_t){
        static int pos = 0;
        static char mem[600020*sizeof(Node)];
        Node * res = (Node*)(mem+pos);
        pos += sizeof(Node);
        return res;
    }
    int size(){
        return this->cnt;
    }
    T min(){
        return this->min_;
    }
    void show(int ofs = 0){
        if(ch[0] != nil) ch[0]->show(ofs+1);
        rep(i,ofs*2) putchar(' ');
        printf("v:%d m:%d (%p)\n", val, min_, this);
        if(ch[1] != nil) ch[1]->show(ofs+1);
    }
    void update(){
        cnt = ch[0]->size() + ch[1]->size() + 1;
        min_ = std::min({ ch[0]->min(), ch[1]->min(), val });
    }
    Node *merge(Node *r){
        if(this == nil || r == nil) return this == nil ? r : this;
        if(pri > r->pri){
            ch[1] = ch[1]->merge(r);
            update();
            return this;
        } else {
            r->ch[0] = merge(r->ch[0]);
            r->update();
            return r;
        }
    }
    pair<Node*,Node*> split(int k){
        int lc = ch[0]->size();
        if(k <= lc){
            auto s = ch[0] != nil ? ch[0]->split(k) : make_pair(nil, nil);
            ch[0] = s.second;
            update();
            return make_pair(s.first, this);
        } else {
            auto s = ch[1] != nil ? ch[1]->split(k-lc-1) : make_pair(nil, nil);
            ch[1] = s.first;
            update();
            return make_pair(this, s.second);
        }
    }
    Node *erase(int k){
        Node *l, *m, *r;
        tie(l,m) = split(k);
        tie(m,r) = m->split(1);
        //delete m;
        return l->merge(r);
    }
    Node *at(int k){
        int lc = ch[0]->size();
        if(k < lc) return ch[0]->at(k);
        else if(k == lc) return this;
        else return ch[1]->at(k-lc-1);
    }
    void set(int k, T x){
        int lc = ch[0]->size();
        if(k < lc) ch[0]->set(k, x);
        else if(k == lc) val = x;
        else if(k > lc) ch[1]->set(k-lc-1, x);
        update();
    }
    Node *insert(int k, T v){
        Node *l,*m = new Node(v,xor128()), *r;
        tie(l,r) = split(k);
        return l->merge(m)->merge(r);
    }
    T min(int l, int r){
        if(r - l <= 0) return inf;
        if(r - l == this->size()) return this->min();
        int lc = ch[0]->size();
        if(l == lc && r - lc == 1) return val;
        T res = inf;
        if(l < lc) res = std::min(res, ch[0]->min(l, std::min(lc,r)));
        if(l <= lc && lc < r) res = std::min(res, min(lc,lc+1));
        if(lc + 1 < r) res = std::min(res, ch[1]->min(max(0,l-lc-1), r-lc-1));
        return res;
    }
};
template<class T>
Node<T> *Node<T>::nil = new Node<T>(0,0);

template<class T>
struct Treap {
    Node<T> *root;
    int size;
    Treap() : root(Node<T>::nil), size(0) {
        root->nil->cnt = 0;
        root->nil->min_ = inf;
    }
    // ~Treap(){
    //     delete root;
    // }
    void shift(int l, int r){
        T tmp = root->at(r-1)->val;
        root = root->erase(r-1);
        root = root->insert(l, tmp);
    }
    void set(int k, T x){
        root->set(k, x);
    }
    T min(int l, int r){
        return root->min(l, r);
    }
    void push_back(T x){
        if(size == 0) root = new Node<T>(x, xor128()), size++;
        else root = root->insert(size++,x);
    }
};

int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    int n, q;
    cin >> n >> q;
    Treap<int> t;
    rep(i,n){
        int x;
        cin >> x;
        t.push_back(x);
    }
    rep(i,q){
        int op;
        cin >> op;
        if(false){
        } else if(op == 0){
            int l, r;
            cin >> l >> r;
            t.shift(l,r+1);
        } else if(op == 1){
            int l, r;
            cin >> l >> r;
            cout << t.min(l,r+1) << '\n';
        } else if(op == 2){
            int p, v;
            cin >> p >> v;
            t.set(p,v);
        }
    }
}

Measured memory_bytes: 17580