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#include <bits/stdc++.h>

using namespace std;

#define PB push_back
#define FORE(i, t) for(__typeof(t.begin())i=t.begin();i!=t.end();++i)
#define SZ(x) int((x).size())
#define REP(i, n) for(int i=0,_=(n);i<_;++i)
#define FOR(i, a, b) for(int i=(a),_=(b);i<=_;++i)
#define FORD(i, a, b) for(int i=(a),_=(b);i>=_;--i)
#define FI first
#define SE second

typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> pii;
typedef pair <ll, ll> pll;

const ll MOD = 1e9 + 7;

#include "message.h"
#include "poszukiwania.h"

const ll HASH_BASES[] = {
        1003452347,
        1003452371
};
const int HLEN = sizeof(HASH_BASES) / sizeof(HASH_BASES[0]);

const ll MAX_NODES = 100;


ll powmod(ll a, ll b) {
    ll r = 1;
    while (b > 0) {
        if (b % 2 > 0)
            r = (r * a) % MOD;
        a = (a * a) % MOD;
        b /= 2;
    }
    return r;
}


struct Hash {
    ll values[HLEN];
    int len;

    Hash() {
        REP(i, HLEN) {
            values[i] = 0;
        }
        len = 0;
    }

    void add(ll x) {
        ++len;
        REP (i, HLEN) {
            values[i] = ((values[i] * HASH_BASES[i]) + x) % MOD;
        }
    }

    void remove(ll x) {
        --len;
        REP (i, HLEN) {
            values[i] = ((values[i] - (x * powmod(HASH_BASES[i], len)) % MOD) + MOD) % MOD;
        }
    }

    void add(const Hash &other) {
        len += other.len;
        REP (i, HLEN) {
            values[i] = ((values[i] * powmod(HASH_BASES[i], other.len)) % MOD + other.values[i]) % MOD;
        }
    }

    void send(ll node) {
        REP (i, HLEN) {
            PutLL(node, values[i]);
        }
        PutInt(node, len);
        Send(node);
    }

    void receive(ll node) {
        Receive(node);
        REP (i, HLEN) {
            values[i] = GetLL(node);
        }
        len = GetInt(node);
    }

    bool eq(const Hash &other) const {
        if (len != other.len) {
            return false;
        }
        REP(i, HLEN) {
            if (values[i] != other.values[i]) {
                return false;
            }
        }
        return true;
    }
};

ll plen, tlen;
ll me = MyNodeId();
ll nodes_count = NumberOfNodes();
Hash hashes_of_pattern_parts[MAX_NODES];
Hash hashes_of_text_parts[MAX_NODES];
Hash pattern_hash;

ll inline p(ll i) {
    return SignalAt(i);
}

ll inline t(ll i) {
    return SeqAt(i);
}

pll inline get_range(ll node, ll range_max) {
    ll a = range_max * node / nodes_count + 1;
    ll b = range_max * (node + 1) / nodes_count;
    return pll(a, b);
}

void compute_hash_of_pattern() {
//    ll a = plen * me / nodes_count + 1;
//    ll b = plen * (me + 1) / nodes_count;
    pll range = get_range(me, plen);
//    printf("0 pattern_parts: me=%lld range=%lld..%lld\n", me, range.FI, range.SE);
    FOR(i, range.FI, range.SE) {
        hashes_of_pattern_parts[me].add(p(i));
    }
    REP (node, nodes_count) {
        if (node != me) {
            hashes_of_pattern_parts[me].send(node);
        }
    }
    REP (node, nodes_count) {
        if (node != me) {
            hashes_of_pattern_parts[node].receive(node);
        }
//        printf("1 pattern_parts: node=%lld hash=%lld\n", node, (ll) hashes_of_pattern_parts[node].values[0]);
        pattern_hash.add(hashes_of_pattern_parts[node]);
    }
//    printf("2 PATTERN_HASH=%lld %lld\n", pattern_hash.values[0], pattern_hash.values[1]);
}

void compute_hash_of_text_parts() {
//    ll a = tlen * me / nodes_count + 1;
//    ll b = tlen * (me + 1) / nodes_count;
    pll range = get_range(me, tlen);
//    printf("3 text_parts: me=%lld range=%lld..%lld\n", me, range.FI, range.SE);
    FOR(i, range.FI, range.SE) {
//    FOR(i, a, b) {
        hashes_of_text_parts[me].add(t(i));
    }
    REP (node, nodes_count) {
        if (node != me) {
            hashes_of_text_parts[me].send(node);
        }
    }
    REP (node, nodes_count) {
        if (node != me) {
            hashes_of_text_parts[node].receive(node);
        }
//        printf("4 text_parts: node=%lld hash=%lld\n", node, (ll) hashes_of_text_parts[node].values[0]);
    }
}


ll inline which_part(ll x, ll max_x) {
    ll xx = x * nodes_count;
    return xx / max_x + (xx % max_x > 0 ? 1 : 0) - 1;
}

void count_occurences() {
    ll result = 0;
    ll max_start = tlen - plen + 1;
//    ll a = max_start * me / nodes_count + 1;
//    ll b = max_start * (me + 1) / nodes_count;
    pll range = get_range(me, max_start);
//    printf("5 occurences: me=%lld range=%lld..%lld\n", me, range.FI, range.SE);
    Hash hash;
    FOR (start, range.FI, range.SE) {
        ll end = start + plen - 1;
//        printf("6 occurences: me=%lld s=%lld e=%lld\n", me, start, end);
        if (start == range.FI) {
            ll start_part = which_part(start, tlen);
            ll end_part = which_part(end, tlen);

            if (start_part == end_part) {
                FOR (i, start, end) {
                    hash.add(t(i));
                }
            } else {
//                printf("7 occurences: me=%lld s=%lld e=%lld big hash %lld..%lld + ... + %lld..%lld\n",
//                       me, start, end,
//                       start, get_range(start_part, tlen).SE,
//                       get_range(end_part, tlen).FI, end
//                );
                FOR(i, start, get_range(start_part, tlen).SE) {
                    hash.add(t(i));
                }
                FOR(part, start_part + 1, end_part - 1) {
                    hash.add(hashes_of_text_parts[part]);
                }
                FOR(i, get_range(end_part, tlen).FI, end) {
                    hash.add(t(i));
                }
            }
        } else {
            hash.remove(t(start - 1));
            hash.add(t(end));
        }
        if (hash.eq(pattern_hash)) {
//            printf("6 occurences: me=%lld s=%lld e=%lld <-- MATCH %lld %lld (%lld)\n",
//                   me, start, end, hash.values[0], pattern_hash.values[0], hash.values[1]);
            ++result;
        } else {
//            printf("6 occurences: me=%lld s=%lld e=%lld <-- not %lld %lld\n",
//                   me, start, end, hash.values[0], pattern_hash.values[0]);
        }
    }
    PutLL(0, result);
    Send(0);
}

void print_result() {
    if (me == 0) {
        ll result = 0;
        REP (node, nodes_count) {
            Receive(node);
            result += GetLL(node);
        }
        printf("%lld\n", result);
    }
}

void inline one() {
    plen = SignalLength();
    tlen = SeqLength();
    compute_hash_of_pattern();
    compute_hash_of_text_parts();
    count_occurences();
    print_result();
}

int main() {
    //int z; scanf("%d", &z); while(z--)
    one();
}