//#pragma GCC optimize("Ofast")
//#pragma GCC target("avx,avx2,sse,sse2,sse3,ssse3,sse4,abm,popcnt,mmx")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef double db;
typedef long double ldb;
typedef complex<double> cd;

constexpr ll INF64 = 2'000'000'000'000'000, INF32 = 2'000'000'000, MOD = 1'000'000'007, LOG = 21;
constexpr db PI = acos(-1);
constexpr bool IS_FILE = false, IS_TEST_CASES = false;

random_device rd;
mt19937 rnd32(rd());
mt19937_64 rnd64(rd());

template<typename T>
bool assign_max(T& a, T b) {
	if (b > a) {
		a = b;
		return true;
	}
	return false;
}

template<typename T>
bool assign_min(T& a, T b) {
	if (b < a) {
		a = b;
		return true;
	}
	return false;
}

template<typename T>
T square(T a) {
	return a * a;
}

template<>
struct std::hash<pair<ll, ll>> {
	ll operator() (pair<ll, ll> p) const {
		return ((__int128)p.first * MOD + p.second) % INF64;
	}
};

struct segment_tree_min {
	vector<pair<ll, ll>> tree;
	ll size;
	segment_tree_min(vector<ll> arr) {
		size = 1;
		while (size < arr.size()) {
			size *= 2;
		}
		tree.resize(size * 2, make_pair(0, 0));
		arr.resize(size, INF64);
		for (ll i = 0; i < size; i++) {
			tree[i + size].second = i;
			tree[i + size].first = arr[i];
		}
		for (ll i = size - 1; i > 0; i--) {
			tree[i] = min(tree[i * 2], tree[i * 2 + 1]);
		}
	}
	pair<ll, ll> get(ll l, ll r) {
		return get(1, 0, size, l, r);
	}
	pair<ll, ll> get(ll v, ll l, ll r, ll ql, ll qr) {
		if (ql <= l && r <= qr) {
			return tree[v];
		}
		if (qr <= l || r <= ql) {
			return make_pair(INF64, 0);
		}
		ll mid = (l + r) / 2;
		return min(get(v * 2, l, mid, ql, qr), get(v * 2 + 1, mid, r, ql, qr));
	}
};

struct segment_tree_max {
	vector<pair<ll, ll>> tree;
	ll size;
	segment_tree_max(vector<ll> arr) {
		size = 1;
		while (size < arr.size()) {
			size *= 2;
		}
		tree.resize(size * 2, make_pair(0, 0));
		arr.resize(size, -INF64);
		for (ll i = 0; i < size; i++) {
			tree[i + size].second = i;
			tree[i + size].first = arr[i];
		}
		for (ll i = size - 1; i > 0; i--) {
			tree[i] = max(tree[i * 2], tree[i * 2 + 1]);
		}
	}
	pair<ll, ll> get(ll l, ll r) {
		return get(1, 0, size, l, r);
	}
	pair<ll, ll> get(ll v, ll l, ll r, ll ql, ll qr) {
		if (ql <= l && r <= qr) {
			return tree[v];
		}
		if (qr <= l || r <= ql) {
			return make_pair(-INF64, 0);
		}
		ll mid = (l + r) / 2;
		return max(get(v * 2, l, mid, ql, qr), get(v * 2 + 1, mid, r, ql, qr));
	}
};

void solve() {
	ll n, q;
	cin >> n >> q;
	vector<ll> arr(n);
	vector<ll> ps(1, 0);
	for (ll i = 0; i < n; i++) {
		cin >> arr[i];
	}
	for (ll i = 0; i < n; i++) {
		ps.push_back(ps.back() + arr[i]);
	}
	vector<ll> ps2 = ps;
	ps2.erase(ps2.begin());
	segment_tree_min stmi(ps2);
	segment_tree_max stma(ps2);
	for (ll i = 0; i < q; i++) {
		ll t, l, r;
		cin >> t >> l >> r;
		if (t == 1) {
			l--;
			ll ans = abs(ps[r] - ps[l]);
			ll nx = INF64;
			ll ni = l;
			bool b = false;
			while (ni < r) {
				if (b) {
					auto[mi, ind] = stmi.get(ni, r);
					mi -= ps[ni];
					assign_min(nx, -mi);
					ni = ind + 1;
				} else {
					auto[ma, ind] = stma.get(ni, r);
					ma -= ps[ni];
					assign_min(nx, ma);
					ni = ind + 1;
				}
				assign_max(ans, min(nx, abs(ps[r] - ps[ni])));
				b = !b;
			}
			b = true;
			nx = INF64;
			ni = l;
			while (ni < r) {
				if (b) {
					auto[mi, ind] = stmi.get(ni, r);
					mi -= ps[ni];
					assign_min(nx, -mi);
					ni = ind + 1;
				} else {
					auto[ma, ind] = stma.get(ni, r);
					ma -= ps[ni];
					assign_min(nx, ma);
					ni = ind + 1;
				}
				assign_max(ans, min(nx, abs(ps[r] - ps[ni])));
				b = !b;
			}
			cout << ans << '\n';
		} else {
			exit(1);
		}
	}
}

int main() {
	if (IS_FILE) {
		freopen("", "r", stdin);
		freopen("", "w", stdout);
	}
    	ios_base::sync_with_stdio(false);
    	cin.tie(0);
    	cout.tie(0);
	ll t = 1;
	if (IS_TEST_CASES) {
		cin >> t;
	}
	for (ll i = 0; i < t; i++) {
		solve();
	}
}