一个诡异的现象

#include <bits/stdc++.h>
#define int long long
#define rep(i, l, r) for (int i = (l); i <= (r); i++)
#define per(i, l, r) for (int i = (l); i >= (r); i--)

using namespace std;

constexpr int N = 1e6 + 10;

int n, c[N];

signed main() {
//	freopen("a.in", "r", stdin);
  int q, sum = 0;
  cin >> n >> q;
  rep(i, 1, n) cin >> c[i];
  rep(i, 1, n) sum += c[i];
  rep(i, 1, q) {
    int x, y;
    cin >> x >> y;
    cout << sum << "\n";
  }

  return 0;
}