#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

const int MAXN = (1 << 16);

int n, m, k, ans, a[20], val[MAXN], w[MAXN], dp[20][MAXN], p[20][MAXN];

void Out(int x, int u) {
  if (!x) return ;
  Out(x - 1, u ^ p[x][u]);
  vector<int> out;
  for (int i = 0; i < m; i++) {
    if ((p[x][u] >> i) & 1) {
      out.push_back(i + 1);
    }
  }
  cout << out.size() << ' ';
  for (auto u : out) cout << u << ' ';
  cout << '\n';
}

int main() {
  ios::sync_with_stdio(0), cin.tie(0);
  cin >> n >> m;
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
  }
  for (int i = 0, x, y; i < m; i++) {
    cin >> x >> y;
    for (int j = 0; j < (1 << m); j++) {
      val[j] += x * ((j >> i) & 1);
      w[j] += y * ((j >> i) & 1);
    }
  }
  for (int i = 1; i <= n; i++) {
    for (int j = 0; j < (1 << m); j++) {
      for (int k = j; ; k = (k - 1) & j) {
        if (w[k] <= a[i] && dp[i][j] < dp[i - 1][j ^ k] + val[k]) {
          dp[i][j] = dp[i - 1][j ^ k] + val[k], p[i][j] = k;
        }
        if (!k) break;
      }
    }
  }
  for (int i = 0; i < (1 << m); i++){
    ans = max(ans, dp[n][i]);
  }
  cout << ans << '\n';
  for (int i = 0; i < (1 << m); i++) {
    if (ans == dp[n][i]) {
      Out(n, i);
      return 0;
    }
  }
  return 0;
}