#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << " " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << " " << j << " " << #i << " " << q << " " << #p << endl;
#define show4(x,y) for(auto it:y) cout << it << " "; cout << #x << endl;
typedef pair<int,int>pii;
mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());
void solve(){
int n,k;
cin >> n >> k;
bool mat[n+5][n+5];
memset(mat,0,sizeof(mat));
int a,b;
for(int x=0;x<k;x++){
cin >> a >> b;
mat[a][b]=true;
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++){
for(int k=1;k<=n;k++){
for(int l=1;l<=n;l++){
if(mat[j][k]&&mat[k][l]&&mat[l][k]) mat[j][l]=true;
}
}
}
}
int counter=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=n;j++){
if(i==j) continue;
counter+=mat[i][j];
//cout << mat[i][j];
}
//cout << "\n";
}
cout << counter << "\n";
}
}
int32_t main(){
ios::sync_with_stdio(0);
cin.tie(0);
int t=1;
//cin >> t;
while(t--){
solve();
}
}
