#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
#define oo 1e9
const int MAX = 3e5 + 5;
int n, q;
int arr[MAX];
int ans[MAX][2];
void solve(){
cin >> n >> q;
for(int i = 1; i <= n; i++){
cin >> arr[i];
}
while(q--){
char t; cin >> t;
if(t == '*'){
int l, r; cin >> l >> r;
for(int i = l; i <= r; i++) arr[i] *= -1;
}
if(t == '+'){
int l, r, v; cin >> l >> r >> v;
for(int i = l; i <= r; i++) arr[i] += v;
}
if(t == '?'){
int l, r; cin >> l >> r;
for(int i = l; i <= r; i++) ans[i][0] = ans[i][1] = 1;
int res = 1;
for(int i = r - 1; i >= l; i--){
if(arr[i] > arr[i + 1]) ans[i][1] = ans[i + 1][0] + 1;
if(arr[i] < arr[i + 1]) ans[i][0] = ans[i + 1][1] + 1;
res += max(ans[i][0], ans[i][1]);
}
cout << res << "\n";
}
}
}
signed main(){
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int t = 1;
while(t--){
solve();
}
}
