#include <bits/stdc++.h>
#define rep(i,N) for(int i=0;i<N;i++)
using namespace std;
typedef long long ll;
constexpr ll ten(int n){return n==0?1:10*ten(n-1);}
const int B=350;
const ll MX=ten(15);
int n,q;
ll a[ten(5)];
int main(){
	cin>>n;
	assert(1<=n&&n<=ten(5));
	rep(i,n){
		ll x;
		cin>>x;
		assert(-ten(10)<=x&&x<=ten(10));
      	a[i]=x;
	}
	cin>>q;
	assert(1<=q&&q<=ten(5));
	rep(i,q){
		int k,l,r,c;
		cin>>k>>l>>r>>c;
		assert(k==1||k==2);
		assert(1<=l&&l<=r&&r<=n);
		assert(-ten(4)<=c&&c<=ten(4));
		l--;
		if(k==1)for(int i=l;i<r;i++)a[i]+=c;
		else{
			ll ma=ten(18);
			for(int i=l;i<r;i++)ma=min(ma,a[i]);
			cout<<ma<<endl;
		}

	}
}