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// Artur Kraska, II UWr

#include "message.h"
#include "teatr.h"
#include "bits/stdc++.h"

//int GetN() { return int(1e8); }
//int GetElement(int i) { return (i * 1ll * i) % int(1e6) + 1; }

#define forr(i, n)                  for(int i=0; i<n; i++)
#define FOREACH(iter, coll)         for(typeof(coll.begin()) iter = coll.begin(); iter != coll.end(); ++iter)
#define FOREACHR(iter, coll)        for(typeof(coll.rbegin()) iter = coll.rbegin(); iter != coll.rend(); ++iter)
#define lbound(P,R,PRED)            ({typeof(P) X=P,RRR=(R), PPP = P; while(PPP<RRR) {X = (PPP+(RRR-PPP)/2); if(PRED) RRR = X; else PPP = X+1;} PPP;})
#define testy()                     int _tests; scanf("%d", &_tests); FOR(_test, 1, _tests)
#define CLEAR(tab)                  memset(tab, 0, sizeof(tab))
#define CONTAIN(el, coll)           (coll.find(el) != coll.end())
#define FOR(i, a, b)                for(int i=a; i<=b; i++)
#define FORD(i, a, b)               for(int i=a; i>=b; i--)
#define MP                          make_pair
#define PB                          push_back
#define deb(X)                      X;

#define M 1000000007
#define INF 1000000007
#define EPS 1e-12

#define wekt(a, b, p) ((b.x-a.x)*(p.y-a.y)-(b.y-a.y)*(p.x-a.x))

using namespace std;

int ID, N;
int n, pocz, kon;
long long ile[15], suma[15];

long long d[4200007];
int S;


void dokladaj(int nr)
{
    nr += S;
    while(nr > 0)
    {
        d[nr]++;
        nr >>= 1;
    }
}

long long zlicz(int nr)
{
    long long res = 0;
    nr += S;
    while(nr > 1)
    {
        if((nr&1) == 0)
            res += d[nr+1];
        nr >>= 1;
    }
    return res;
}

int main()
{
    ID = MyNodeId();
    N = NumberOfNodes();

//    cout << ID << ", " << N << endl;

    n = GetN();

//    cout << n << endl;

    pocz = ID*n/N;
    kon = (ID+1)*n/N-1;



    S = 1;
    while(S < 1000002)
        S *= 2;

    forr(i, pocz)
    {
        int a = GetElement(i);
        d[S+a]++;
    }

    FORD(i, S-1, 1)
        d[i] = d[i*2] + d[i*2+1];


    long long res = 0;
    FOR(i, pocz, kon)
    {
        int a = GetElement(i);
        res += zlicz(a);
        dokladaj(a);
//        cout << "doliczyl dla elementu " << a << ", tera ma " << res << endl;
    }




    /*
    FOR(i, ID+1, N-1)
    {
        FOR(j, 1, 5)
            PutLL(i, ile[j]);
        Send(i);
    }

    forr(i, ID)
    {
        Receive(i);
        FOR(j, 1, 5)
            suma[j] += GetLL(i);
    }

    FOR(i, 1, 5)
        FOR(j, i+1, 5)
            res += suma[j]*ile[i];
*/

    if(ID != 0)
    {
//        cout << " wysylam " << res << endl;
        PutLL(0, res);
        Send(0);
    }
    else
    {
        FOR(i, 1, N-1)
        {
            Receive(i);
            res += GetLL(i);
        }
        //if(res == 2499912950050000ll)
        //    while(1) res++;
        cout << res << endl;
    }

    return 0;
}