#include<iostream>
#include<sstream>
#include<algorithm>
#include<vector>
#include<set>
#include<map>
#include<queue>
#include<complex>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cassert>
#include<time.h>

#define rep(i,n) for(int i=0;i<(int)n;i++)
#define all(c) (c).begin(),(c).end()
#define mp make_pair
#define pb push_back
#define each(i,c) for(__typeof((c).begin()) i=(c).begin();i!=(c).end();i++)
#define dbg(x) cerr<<__LINE__<<": "<<#x<<" = "<<(x)<<endl

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pi;
const int inf = (int)1e9;

template<class T>
struct treap{
	struct node_t{
		T val;
		T sum;
		node_t *lch, *rch;
		int pri;
		int cnt;
		node_t(T v, int p) : val(v), pri(p), cnt(1), sum(v){
			lch = rch = NULL;
		}
	};
	node_t *root;
	treap() : root(NULL){ }
	
	int count(node_t *t){ return t ? t->cnt : 0; }
	T   sum(node_t *t)  { return t ? t->sum : inf; }
	int size()          { return count(root); }
	
	node_t *update(node_t *t){
		t->cnt = count(t->lch) + count(t->rch) + 1;
		t->sum = min(min(sum(t->lch), sum(t->rch)), t->val);
		return t;
	}
	node_t *merge(node_t *l, node_t *r){
		if(!l || !r) return l ? l : r;
		if(l->pri > r->pri){
			l->rch = merge(l->rch, r);
			return update(l);
		}
		else{
			r->lch = merge(l, r->lch);
			return update(r);
		}
	}
	pair<node_t*, node_t*> split(node_t *t, int k){
		if(!t) return mp((node_t*)NULL, (node_t*)NULL);
		if(k <= count(t->lch)){
			pair<node_t*, node_t*> s = split(t->lch, k);
			t->lch = s.second;
			return mp(s.first, update(t));
		}
		else{
			pair<node_t*, node_t*> s = split(t->rch, k - count(t->lch) - 1);
			t->rch = s.first;
			return mp(update(t), s.second);
		}
	}
	node_t *insert(node_t *t, int k, T val, int pri){
		pair<node_t*, node_t*> s = split(t, k);
		t = merge(s.first, new node_t(val, pri));
		t = merge(t, s.second);
		return update(t);
	}
	node_t *erase(node_t *t, int k){
		pair<node_t*, node_t*> s1, s2;
		s2 = split(t, k + 1);
		s1 = split(s2.first, k);
		t = merge(s1.first, s2.second);
		return update(t);
	}
	node_t *find(node_t *t, int k){
		int c = count(t->lch);
		if(k <  c) return find(t->lch, k);
		if(k == c) return t;
		return find(t->rch, k - c - 1);
	}
	void insert(int k, T val){ root = insert(root, k, val, rand()); }
	void erase(int k){ root = erase(root, k); }
	node_t *find(int k){ return find(root, k); }
	
	void shift(int l, int r){
		pair<node_t*, node_t*> a, b, c;
		c = split(root, r);
		b = split(c.first, r - 1);
		a = split(b.first, l);
		root = merge(a.first, b.second);
		root = merge(root, a.second);
		root = merge(root, c.second);
	}
	int query(int l, int r, node_t *t){
		int sz = count(t);
		if(l >= sz || r <= 0) return inf;
		if(l <= 0 && r >= sz) return sum(t);
		
		int c  = count(t->lch);
		int lv = query(l, r, t->lch);
		int rv = query(l - c - 1, r - c - 1, t->rch);
		int res = min(lv, rv);
		if(l <= c && c < r) res = min(res, t->val);
		return res;
	}
};

int main()
{
	srand(time(NULL));
	int n, q;
	treap<int> t;
	
	scanf("%d%d", &n, &q);
	rep(i, n){
		int a;
		scanf("%d", &a);
		t.insert(i, a);
	}
	while(q--){
		int c, a, b;
		scanf("%d%d%d", &c, &a, &b);
		if(c == 2){
			t.erase(a);
			t.insert(a, b);
		}
		else if(c == 1){
			printf("%d\n", t.query(a, b + 1, t.root));
		}
		else{
			t.shift(a, b + 1);
		}
	}
	
	return 0;
}

Measured memory_bytes: 13704