# import pypyjit
# pypyjit.set_param('max_unroll_recursion=-1')
from collections import *
from itertools import *
from functools import *
from heapq import *
import sys,math
input = sys.stdin.buffer.readline


class lazy_segtree():
    def __init__(self, lst, ope, e, mapping, composition, id_):

        self.n = len(lst)
        self.log = (self.n - 1).bit_length()
        self.size = 1 << self.log
        self.data = [e for _ in range(2 * self.size)]
        self.lz = [id_ for _ in range(self.size)]
        self.e = e
        self.op = ope
        self.mapping = mapping
        self.composition = composition
        self.identity = id_
        for i in range(self.n):
            self.data[self.size + i] = lst[i]
        for i in range(self.size - 1, 0, -1):
            self.update(i)
        
    def update(self, k):
        self.data[k] = self.op(self.data[2 * k], self.data[2 * k + 1])
        
    def all_apply(self, k, f):
        self.data[k] = self.mapping(f, self.data[k])
        if k < self.size:
            self.lz[k] = self.composition(f, self.lz[k])

    def push(self, k):
        self.all_apply(2 * k, self.lz[k])
        self.all_apply(2 * k + 1, self.lz[k])
        self.lz[k] = self.identity

    def set(self, p, x):
        p += self.size
        for i in range(self.log, 0, -1):
            self.push(p >> i)
        self.data[p] = x
        for i in range(1, self.log + 1):
            self.update(p >> i)

    def get(self, p):
        p += self.size
        for i in range(self.log, 0, -1):
            self.push(p >> i)
        return self.data[p]

    def prod(self, l, r):
        if l == r: return self.e
        l += self.size
        r += self.size
        for i in range(self.log, 0, -1):
            if (l >> i) << i != l:
                self.push(l >> i)
            if (r >> i) << i != r:
                self.push(r >> i)
        sml, smr = self.e, self.e
        while l < r:
            if l & 1:
                sml = self.op(sml, self.data[l])
                l += 1
            if r & 1:
                r -= 1
                smr = self.op(self.data[r], smr)
            l >>= 1
            r >>= 1
        return self.op(sml, smr)

    def all_prod(self):
        return self.data[1]

    def apply_point(self, p, f):
        p += self.size
        for i in range(self.log, 0, -1):
            self.push(p >> i)
        self.data[p] = self.mapping(f, self.data[p])
        for i in range(1, self.log + 1):
            self.update(p >> i)

    def apply(self, l, r, f):
        if l == r: return
        l += self.size
        r += self.size
        for i in range(self.log, 0, -1):
            if (l >> i) << i != l:
                self.push(l >> i)
            if (r >> i) << i != r:
                self.push((r - 1) >> i)
        l2, r2 = l, r
        while l < r:
            if l & 1:
                self.all_apply(l, f)
                l += 1
            if r & 1:
                r -= 1
                self.all_apply(r, f)
            l >>= 1
            r >>= 1
        l, r = l2, r2
        for i in range(1, self.log + 1):
            if (l >> i) << i != l:
                self.update(l >> i)
            if (r >> i) << i != r:
                self.update((r - 1) >> i)

    def max_right(self, l, g):
        if l == self.n: return self.n
        l += self.size
        for i in range(self.log, 0, -1):
            self.push(l >> i)
        sm = self.e
        while 1:
            while i % 2 == 0:
                l >>= 1
            if not g(self.op(sm, self.data[l])):
                while l < self.size:
                    self.push(l)
                    l *= 2
                    if g(self.op(sm, self.data[l])):
                        sm = self.op(sm, self.data[l])
                        l += 1
                return l - self.size
            sm = self.op(sm, self.data[l])
            l += 1
            if l & -l == l:
                break
        return self.n

    def min_left(self, r, g):
        if r == 0:
            return 0
        r += self.size
        for i in range(self.log, 0, -1):
            self.push((r - 1) >> i)
        sm = self.e
        while 1:
            r -= 1
            while r > 1 and r % 2 == 1:
                r >>= 1
            if not g(self.op(self.data[r], sm)):
                while r < self.size:
                    self.push(r)
                    r = 2 * r + 1
                    if g(self.op(self.data[r], sm)):
                        sm = self.op(self.data[r], sm)
                        r -= 1
                return r + 1 - self.size
            sm = self.op(self.data[r], sm)
            if r & -r == r:
                break
        return 0
        
        
        
ope = lambda x,y : min(x,y)
ide_ele = (1<<60)
mapping = lambda f,x : x+f
composition = lambda f,g : f+g
id_ = 0

N = int(input())
A = list(map(int,input().split()))
Q = int(input())
T = lazy_segtree(A, ope, ide_ele, mapping, composition, id_)
for _ in range(Q):
    k,l,r,c = map(int,input().split())
    if k==1:
        l -= 1
        T.apply(l,r,c)
    else:
        l -= 1
        print(T.prod(l,r))