#include <iostream>
#include <cstdlib>
#include <cmath>
using namespace std;

int prep[200001],kor[200001],br;

int main()
{
    int n, q;
    scanf("%d %d", &n, &q);
    for (int i=0;i<q;++i)
        scanf("%d", &prep[i]);
    for (int i=0;i<q;++i)
    {
        ++kor[prep[i]-1];
        kor[prep[i]-1]%=2;
        for (int j=0;j<n-1;++j)
        {
            if (kor[j]==0 && kor[j+1]==1)
                br+=2;
            else if (kor[j]==0 && kor[j-1]==1 && br>0)
                ++br;
        }
        printf("%d\n", br);
        br=0;
    }
    return 0;
}