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#include <bits/stdc++.h>
#include <message.h>
#include <dzialka.h>
#define MP make_pair
#define PB push_back
#define int long long
#define st first
#define nd second
#define rd third
#define FOR(i, a, b) for(int i =(a); i <=(b); ++i)
#define RE(i, n) FOR(i, 1, n)
#define FORD(i, a, b) for(int i = (a); i >= (b); --i)
#define REP(i, n) for(int i = 0;i <(n); ++i)
#define VAR(v, i) __typeof(i) v=(i)
#define FORE(i, c) for(VAR(i, (c).begin()); i != (c).end(); ++i)
#define ALL(x) (x).begin(), (x).end()
#define SZ(x) ((int)(x).size())
using namespace std;
template<typename TH> void _dbg(const char* sdbg, TH h) { cerr<<sdbg<<"="<<h<<"\n"; }
template<typename TH, typename... TA> void _dbg(const char* sdbg, TH h, TA... t) {
  while(*sdbg != ',')cerr<<*sdbg++; cerr<<"="<<h<<","; _dbg(sdbg+1, t...);
}
#ifdef LOCAL
#define debug(...) _dbg(#__VA_ARGS__, __VA_ARGS__)
#define debugv(x) {{cerr <<#x <<" = "; FORE(itt, (x)) cerr <<*itt <<", "; cerr <<"\n"; }}
#else
#define debug(...) (__VA_ARGS__)
#define debugv(x)
#define cerr if(0)cout
#endif
#define next ____next
#define prev ____prev
#define left ____left
#define hash ____hash
typedef long long ll;
typedef long double LD;
typedef pair<int, int> PII;
typedef pair<ll, ll> PLL;
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<ll> VLL;
typedef vector<pair<int, int> > VPII;
typedef vector<pair<ll, ll> > VPLL;

template<class C> void mini(C&a4, C b4){a4=min(a4, b4); }
template<class C> void maxi(C&a4, C b4){a4=max(a4, b4); }
template<class T1, class T2>
ostream& operator<< (ostream &out, pair<T1, T2> pair) { return out << "(" << pair.first << ", " << pair.second << ")";}
template<class A, class B, class C> struct Triple { A first; B second; C third;
  bool operator<(const Triple& t) const { if (st != t.st) return st < t.st; if (nd != t.nd) return nd < t.nd; return rd < t.rd; } };
template<class T> void ResizeVec(T&, vector<int>) {}
template<class T> void ResizeVec(vector<T>& vec, vector<int> sz) {
  vec.resize(sz[0]); sz.erase(sz.begin()); if (sz.empty()) { return; }
  for (T& v : vec) { ResizeVec(v, sz); }
}
typedef Triple<int, int, int> TIII;
template<class A, class B, class C>
ostream& operator<< (ostream &out, Triple<A, B, C> t) { return out << "(" << t.st << ", " << t.nd << ", " << t.rd << ")"; }
template<class T> ostream& operator<<(ostream& out, vector<T> vec) { out<<"("; for (auto& v: vec) out<<v<<", "; return out<<")"; }

const int kMaxIntInMsg = 5000;

void SuperSend(int inst, vector<int>& vec) {
  int msg_num = (SZ(vec) + kMaxIntInMsg - 1) / kMaxIntInMsg;
  PutInt(inst, msg_num); Send(inst);
  REP (msg, msg_num) {
    PutInt(inst, min(kMaxIntInMsg, SZ(vec) - msg * kMaxIntInMsg));
    for (int j = msg * kMaxIntInMsg; j < (msg + 1) * kMaxIntInMsg && j < SZ(vec); j++) {
      PutInt(inst, vec[j]);
    }
    Send(inst);
  }
}
vector<int> SuperReceive(int inst) {
  inst = Receive(inst); int parts = GetInt(inst); vector<int> vec;
  REP (i, parts) {
    Receive(inst); int sz = GetInt(inst);
    REP (j, sz) { vec.PB(GetInt(inst)); }
  }
  return vec;
}
void PutVLL(int to, vector<ll> v) { PutLL(to, SZ(v)); for (auto x : v) PutLL(to, x); }
vector<ll> GetVLL(int from) { vector<ll> v; int k = GetLL(from); REP (i, k) { v.PB(GetLL(from)); } return v; }
void PutPLL(int to, pair<ll, ll> p) { PutLL(to, p.st); PutLL(to, p.nd); }
pair<ll, ll> GetPLL(int from) { int fir = GetLL(from); int sec = GetLL(from); return {fir, sec}; }
int inst_num;
int Beg1(int n) { return 1ll * n *  MyNodeId()      / inst_num + 1; }
int En1(int n)  { return 1ll * n * (MyNodeId() + 1) / inst_num;     }
int Beg0(int n) { return 1ll * n *  MyNodeId()      / inst_num;     }
int En0(int n)  { return 1ll * n * (MyNodeId() + 1) / inst_num - 1; }
int n, m;
const int MM = 76000;
PII stos[MM];

int32_t main() {

  ios_base::sync_with_stdio(0);
  cout << fixed << setprecision(10);
  cerr << fixed << setprecision(10);
  cin.tie(0);
  //double beg_clock = 1.0 * clock() / CLOCKS_PER_SEC;
  
  //cout<<"dupa"<<endl;
  n = GetFieldHeight();
  //cout<<"dupa3"<<endl;
  m = GetFieldWidth();
  inst_num = min(n, (int)NumberOfNodes());
  int id = MyNodeId();
  if (id >= inst_num) { return 0; }
  
  vector<int> fir_block(m + 1, -1);
  int beg = Beg0(n);
  int en = En0(n);
  REP (j, m) {
    FORD (i, en, beg) {
      //cout<<i<<" "<<j<<endl;
      //debug(i, j);
      if (IsUsableCell(i, j) == 0) {
        fir_block[j] = i;
        break;
      }
    }
  }
  //cout<<"dupa2"<<endl;
  //debug(id);
  vector<int> gotten(m + 1, -1), to_send(m + 1);
  if (id) {
    gotten = SuperReceive(id - 1);
  }
  REP (j, m) { 
    to_send[j] = max(fir_block[j], gotten[j]);
  }
  if (id != inst_num - 1) {
    SuperSend(id + 1, to_send);
  }
   int res = 0;
   int top = 0;
  //debug(beg, en);
  FOR (i, beg, en) {
    REP (j, m) {
      if (IsUsableCell(i, j) == 0) {
        gotten[j] = i;
      }
    }
    gotten[m] = i;
    stos[0] = {0, -1};
    top = 0;
    //VPII stos{{0, -1}};
    REP (j, m + 1) {
      int hei = i - gotten[j];
      //cerr<<hei<<" ";
      int last_popped = j;
      while (stos[top].st > hei) {
        int w = j - stos[top].nd;
        int cut = max(hei, stos[top - 1].st);
        res += w * (w + 1) * (stos[top].st - cut) / 2;
        last_popped = stos[top].nd;
        top--;
      }
      top++;
      stos[top] = {hei, last_popped};
      //debug(stos);
    }
    //cerr<<endl;
    //debug(res);
  }
  //debug(id, res);
  PutLL(0, res);
  Send(0);
  if (id == 0) {
    int glob_res = 0;
    REP (i, inst_num) {
      Receive(i);
      glob_res += GetLL(i);
    }
    cout<<glob_res<<endl;
  }
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  return 0;
}