#include <iostream>
#include <fstream>
#include <vector>

using namespace std;

int n,m, nr_componente_conexe, nr_elemente, comp_max;
bool viz[100003];
vector<int>L[100003];


void Citire()
{
    int i, x, y;
    ifstream fin("date.in");
    fin>>n>>m;
    for(i=1;i<=m;++i)
    {
        fin>>x>>y;
        L[x].push_back(y);
        L[y].push_back(x);
    }

    fin.close();
}

void DFS(int x)
{
    unsigned int ui;
    int y;

    viz[x] = true;
    nr_elemente++;

    for(ui=0;ui<L[x].size();++ui)
    {
        y = L[x][ui];
        if(viz[y]==false)
        {
            DFS(y);
        }
    }
}

void Afisare()
{

    ofstream fout("date.out");
    /*for(i=1;i<=n;i++)
    {
        fout<<i<<": ";
        for(j=0;j<L[i].size();j++)
            fout<< L[i][j]<<" ";
        fout<<"\n";

    }*/
    fout<<nr_componente_conexe<<"\n";
    fout<<comp_max<<"\n";
    fout.close();
}

int main()
{
    int i;
    Citire();


    for(i=1;i<=n;i++)
        if(!viz[i])
        {
            nr_componente_conexe++;
            nr_elemente=0;
            DFS(i);
            if(nr_elemente > comp_max)
                comp_max = nr_elemente;
        }

    Afisare();

    return 0;
}