#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target ("avx")

#include <inttypes.h>
#include <stdint.h>
#include <stdio.h>

#define MAX_N 100000

int main(void) {
  size_t n, q;
  scanf("%zu%zu", &n, &q);

  int64_t a[MAX_N];

  for (size_t i = 0; i < n; ++i) {
    scanf("%" SCNd64, &a[i]);
  }

  for (size_t i = 0; i < q; ++i) {
    size_t t, l, r;
    int64_t x;
    scanf("%zu%zu%zu%" SCNd64, &t, &l, &r, &x);

    int64_t sum = 0;

    for (size_t j = l - 1; j <= r - 1; ++j) {
      if (a[j] - x > 0) {
        sum += a[j] - x;
      }
    }

    printf("%" PRId64 "\n", sum);
  }
}