#include <bits/stdc++.h>
using namespace std;
const int MAXN = 5e4 + 10;
const int XX = 2e6 + 10;
int n, m, sz;
int from[MAXN], to[MAXN], col[MAXN], w[MAXN];
vector<int> adj[MAXN];
int _from[XX], _to[XX], _prv[XX], _head[XX], ec;
int _rfrom[XX], _rto[XX], _rprv[XX], _rhead[XX], rec;
bool cmpCol(int e1, int e2) { return col[e1] < col[e2]; }
void addEdge(int x, int y) {
  _from[ec] = x, _to[ec] = y, _prv[ec] = _head[x], _head[x] = ec++;
  _rfrom[rec] = y, _rto[rec] = x, _rprv[rec] = _rhead[y], _rhead[y] = rec++;
}
void addClause(int x, int y) {
  addEdge(y ^ 1, x);
  addEdge(x ^ 1, y);
}
pair<int, int> getSpace(int req) {
  pair<int, int> ret(sz, sz + req);
  sz += req;
  return ret;
}
int sArr[XX], tz, comp[XX], cmpCnt;
short compType[XX];
bool vis[XX];
void tSort(int v, int mid) {
  if (vis[v]) return;
  vis[v] = 1;
  for (int e = _head[v]; ~e; e = _prv[e]) tSort(_to[e], mid);
  if ((v & 1) == 0 && v >> 1 < m && w[v >> 1] > mid) tSort(v ^ 1, mid);
  sArr[tz++] = v;
}
void kosaraju(int v, int curCmp, int mid) {
  if (vis[v]) return;
  vis[v] = 1;
  comp[v] = curCmp;
  for (int e = _rhead[v]; ~e; e = _rprv[e]) kosaraju(_rto[e], curCmp, mid);
  if ((v & 1) && v >> 1 < m && w[v >> 1] > mid) kosaraju(v ^ 1, curCmp, mid);
}
bool cmp(int u, int v) { return comp[u] < comp[v]; }
bool ok(int mid) {
  tz = cmpCnt = 0;
  memset(vis, 0, sizeof(vis));
  for (int i = 0; i < sz << 1; i++)
    if (!vis[i]) tSort(i, mid);
  reverse(sArr, sArr + tz);
  memset(vis, 0, sizeof(vis));
  cmpCnt = 0;
  for (int i = 0; i < tz; i++)
    if (!vis[sArr[i]]) kosaraju(sArr[i], cmpCnt++, mid);
  for (int i = 0; i < sz; i++)
    if (comp[i << 1] == comp[i << 1 ^ 1]) return false;
  sort(sArr, sArr + tz, cmp);
  memset(compType, 0, sizeof(compType));
  for (int i = tz - 1; ~i; i--) {
    int v = sArr[i];
    int cc = comp[v];
    if (compType[cc]) {
      compType[comp[v ^ 1]] = 3 - compType[cc];
      continue;
    }
    compType[comp[v]] = 1;
    compType[comp[v ^ 1]] = 2;
  }
  return true;
}
int main() {
  {
    scanf("%d %d", &n, &m);
    sz = m;
    for (int e = 0; e < m; e++) {
      scanf("%d %d %d %d", &from[e], &to[e], &col[e], &w[e]), from[e]--,
          to[e]--;
      adj[from[e]].push_back(e);
      adj[to[e]].push_back(e);
    }
    memset(_head, -1, sizeof(_head));
    memset(_rhead, -1, sizeof(_rhead));
    for (int i = 0; i < n; i++) {
      sort(adj[i].begin(), adj[i].end(), cmpCol);
      for (int l = 0; l < adj[i].size();) {
        int r = l;
        while (r < adj[i].size() && col[adj[i][l]] == col[adj[i][r]]) r++;
        if (r - l > 2) {
          printf("No\n");
          exit(0);
        }
        if (l + 1 < r) addClause(adj[i][l] << 1, adj[i][l + 1] << 1);
        l = r;
      }
      pair<int, int> seg = getSpace(adj[i].size());
      for (int j = 0; j < adj[i].size(); j++)
        addClause(adj[i][j] << 1 ^ 1, seg.first + j << 1);
      for (int j = 1; j < adj[i].size(); j++)
        addClause(seg.first + j - 1 << 1 ^ 1, seg.first + j << 1);
      for (int j = 0; j + 1 < adj[i].size(); j++)
        addClause(seg.first + j << 1 ^ 1, adj[i][j + 1] << 1 ^ 1);
    }
  }
  int b = 0, e = 1e9, ret = 2e9;
  while (b <= e) {
    int mid = b + e >> 1;
    if (ok(mid))
      ret = mid, e = mid - 1;
    else
      b = mid + 1;
  }
  if (ret > 1e9) {
    printf("No\n");
    exit(0);
  }
  ok(ret);
  {
    printf("Yes\n");
    int cnt = 0;
    for (int e = 0; e < m; e++)
      if (compType[comp[e << 1]] == 1) cnt++;
    printf("%d %d\n", ret, cnt);
    for (int e = 0; e < m; e++)
      if (compType[comp[e << 1]] == 1) printf("%d ", e + 1);
    printf("\n");
  }
  return 0;
}
