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/* -----------------------
Autor: Tomasz Boguslawski
-------------------------- */
#include<cstdio>
#include<cstdlib>
#include<iostream>
#include<fstream>
#include<iomanip>
#include<string>
#include<sstream>
#include<cstring>
#include<map>
#include<vector>
#include<set>
#include<queue>
#include<algorithm>
#include <fstream>
#include<math.h>
#include <random>

#define LL long long
#define FOR(x, b, e) for(LL x = b; x <= (e); x++)
#define FORS(x, b, e, s) for(LL x = b; x <= (e); x+=s)
#define FORD(x, b, e) for(LL x = b; x >= (e); x--)
#define VAR(v, n) __typeof(n) v = (n)
#define ALL(c) (c).begin(), (c).end()
#define FOREACH(i, c) for(VAR(i, (c).begin()); i != (c).end(); ++i)
#define DEBUG if (debug)
#define MIN(a,b) ((a>b)?b:a)
#define MAX(a,b) ((a>b)?a:b)

using namespace std;

random_device dev;
mt19937 rng(dev());

class Maxer
{
    LL* T;
    //LL* I;
public:
    LL M;
    Maxer(LL required)
    {
        M=2; while (M<required) M*=2;
        T=new LL[2*M+2];
        //I=new LL[2*M+2];
        FOR(i,0,2*M) { T[i]=0; } //I[i]=-1; }
        //FOR(i,M,2*M) I[i]=i;
        //I[1]=M;
        //cout << "M=" << M << "\n";
    }
    LL getMax() { return T[1]; }
    void setValue(LL index, LL value)
    {
        T[index]=value;
        LL curr=index/2;
        LL newValue, child;
        while(curr>=1)
        {
            child=curr*2;
            newValue=T[child]; //newInd=I[child];
            child++;
            if (T[child]>newValue) { newValue=T[child]; } //newInd=I[child]; }
            //if ((T[curr]==newValue) && (I[curr]==newInd)) return;
            if (T[curr]==newValue) return;
            T[curr]=newValue; //I[curr]=newInd;
            curr/=2;
        }
    }
};

bool isPrime[10000005];
LL primes[1000000];
LL primeCount;

void findPrimes(LL upTo)
{
    FOR(i,1,upTo) isPrime[i]=true;
    isPrime[0]=false; isPrime[1]=false;
    LL p=2; LL c;
    while (p*p<=upTo)
    {
        if (isPrime[p])
        {
            c = p*p;
            while (c<=upTo) { isPrime[c]=false; c+=p; }
        }
        p+=1;
    }
    primeCount=0;
    FOR(i,1,upTo) if (isPrime[i]) primes[++primeCount]=i;
}

LL* mods[1001];
LL* indx[1001];
LL primeForIndex[4200000];
LL modForIndex[4200000];
LL primesUsed;
Maxer* mx;
LL M;
bool state[10000007];

void prepare()
{
    findPrimes(100000);
    LL sum=0; FOR(i,1,primesUsed) sum+=primes[i];
    mx=new Maxer(sum);
    M=mx->M;
    //cout << "Sum=" << sum << " M=" << M << "\n";
    LL index=M;
    FOR(i,1,primesUsed)
    {
        //cout << i << ": " << primes[i] << "\n"; cout.flush();
        mods[i]=new LL[primes[i]];
        indx[i]=new LL[primes[i]];
        FOR(j,0,primes[i]-1)
        {
            mods[i][j]=0;
            indx[i][j]=index;
            primeForIndex[index-M]=i;
            modForIndex[index-M]=j;
            index++;
        }
    }
    //cout << "lastPrime=" << primes[primesUsed] << " sum=" << sum << " M=" << M << "\n";
}

void handle(LL field)
{
    state[field]=!(state[field]);
    //cout << "handling field " << field << "; state changed to: " << state[field] << "\n"; cout.flush();
    bool adding=state[field];
    LL prime; LL modulo; LL index;
    FOR(k,1,primesUsed)
    {
        prime=primes[k];
        modulo=field%prime;
        //cout << " k=" << k << " prime=" << prime << " modulo=" << modulo << "\n";
        if (adding) mods[k][modulo]++; else mods[k][modulo]--;
        index=indx[k][modulo];
        //cout << "   index=" << index << "\n";
        mx->setValue(index, mods[k][modulo]);
    }
    cout << mx->getMax() << "\n";
}

LL n,q;

/// MAIN
int main(int argc, char* argv[])
{
    // magic formula, which makes streams work faster:
	ios_base::sync_with_stdio(0);

	primesUsed=1000;
	prepare();

	n=10000000;
	q=1000000;
	FOR(i,1,n) state[i]=false;

	cin >> n; cin >> q;
	FOR(i,1,n) state[i]=false;
	LL field;
	FOR(t,1,q)
	{
	    cin >> field;
	    handle(field);
	}
	return 0;
}