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#include <algorithm>
#include <cstdio>
// #include "pos/poszukiwania.h"
#include "poszukiwania.h"
#include "message.h"
using namespace std;

typedef unsigned long long LL;

const LL P1 = 1000000009;
const LL P2 = 1000000007;
const LL MOD = 2000000137;
const int MAX_NODES = 100;

int n, k;
int nodes, id;
pair<LL, LL> pattern_hash;
LL text_hash1[MAX_NODES];
LL text_hash2[MAX_NODES];
LL p_text1, p_text2;

pair<LL, LL> compute_pattern() {
  k = SignalLength();
  LL len = (k + nodes - 1) / nodes;
  LL p1 = 1, p2 = 1;
  LL h1 = 0, h2 = 0;
  for (LL i=len*id;i<min((LL)k, len*id+len);i++)
  {
    LL s = SignalAt(i+1);

    h1 += p1 * s;
    p1 *= P1;

    h2 = (h2 + p2 * s) % MOD;
    p2 = (p2 * P2) % MOD;
  }

  if (id > 0) {
    PutLL(0, h1);
    PutLL(0, h2);
    Send(0);
    Receive(0);
    h1 = GetLL(0);
    h2 = GetLL(0);
    return {h1, h2};
  }

  LL pp1 = p1;
  LL pp2 = p2;
  for (int i=1;i<nodes;i++)
  {
    Receive(i);

    LL hh1 = GetLL(i);
    h1 += pp1 * hh1;
    pp1 *= p1;

    LL hh2 = GetLL(i);
    h2 = (h2 + pp2 * hh2) % MOD;
    pp2 = (pp2 * p2) % MOD;
  }
  for (int i=1;i<nodes;i++)
  {
    PutLL(i, h1);
    PutLL(i, h2);
    Send(i);
  }
  return {h1, h2};
}

void compute_text() {
  n = SeqLength();
  LL len = (n + nodes - 1) / nodes;
  LL p1 = 1, p2 = 1;
  LL h1 = 0, h2 = 0;
  for (LL i=len*id;i<min((LL)n, len*id+len);i++)
  {
    LL s = SeqAt(i+1);

    h1 += p1 * s;
    p1 *= P1;

    h2 = (h2 + p2 * s) % MOD;
    p2 = (p2 * P2) % MOD;
  }
  p_text1 = p1;
  p_text2 = p2;
  text_hash1[id] = h1;
  text_hash2[id] = h2;
  for (int i=0;i<nodes;i++)
    if (i != id) {
      PutLL(i, h1);
      PutLL(i, h2);
      Send(i);
    }
  for (int i=0;i<nodes;i++)
    if (i != id) {
      Receive(i);
      text_hash1[i] = GetLL(i);
      text_hash2[i] = GetLL(i);
    }
}

int solve() {
  LL len = (n + nodes - 1) / nodes;
  LL start = len * id;
  if (start > n-k) return 0;
  LL end = min((LL)n - k, start + len);
  int ret = 0;
  LL p1 = 1, p2 = 1;
  LL h1 = 0, h2 = 0;
  for (int i=0;i<k/len;i++)
  {
    h1 += p1 * text_hash1[id+i];
    p1 *= p_text1;

    h2 = (h2 + p2 * text_hash2[id+i]) % MOD;
    p2 = (p2 * p_text2) % MOD;
  }
  for (int i=k/len*len;i<k;i++)
  {
    LL s = SeqAt(start+i+1);

    h1 += p1 * s;
    p1 *= P1;

    h2 = (h2 + p2 * s) % MOD;
    p2 = (p2 * P2) % MOD;
  }
  ret += pair<LL, LL>{h1, h2} == pattern_hash;

  LL first_p1 = 1, first_p2 = 1;
  for (LL i=start+1;i<end;i++)
  {
    LL si = SeqAt(i);
    LL sk = SeqAt(i+k);

    h1 -= first_p1 * si;
    first_p1 *= P1;

    pattern_hash.first *= P1;
    h1 += p1 * sk;
    p1 *= P1;

    h2 = (h2 + MOD - (first_p2 * si % MOD)) % MOD;
    first_p2 = (first_p2 * P2) % MOD;

    pattern_hash.second = (pattern_hash.second * P2) % MOD;
    h2 = (h2 + p2 * sk) % MOD;
    p2 = (p2 * P2) % MOD;

    ret += pair<LL, LL>{h1, h2} == pattern_hash;
  }
  return ret;
}

int main() {
  nodes = NumberOfNodes();
  id = MyNodeId();
  pattern_hash = compute_pattern();
  compute_text();
  int res = solve();
  if (id == 0) {
    for (int foo=1;foo<nodes;foo++)
    {
      int s = Receive(-1);
      res += GetInt(s);
    }
    printf("%d\n", res);
  } else {
    PutInt(0, res);
    Send(0);
  }
  return 0;
}