#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;
int store[10000][10];
int visited[11]={0};
int parent[11]={-1};
int adj[11][11];
int edvis[11][11]={0};
int incurrentdfs[11]={0};
int t=0;
void dfs(int x,int n){
visited[x]=1;
incurrentdfs[x]=1;
for(int j=1;j<=n;j++){
if(adj[x][j] && !visited[j]){
edvis[x][j]=1;
parent[j]=x;
dfs(j,n);
}
else if(adj[x][j] && visited[j] && incurrentdfs[j]){
edvis[x][j]=1;
int c=x;
while(c!=j){
store[t][c]=1;
c=parent[c];
}
store[t][j]=1;
t++;
}
else if(visited[j] && adj[x][j] && !incurrentdfs[j] && !edvis[x][j]){
edvis[x][j]=1;
parent[j]=x;
dfs(j,n);
}
}
incurrentdfs[x]=0;
}
int main() {
int n,m;
cin>>n>>m;
for(int j=0;j<m;j++){
int a,b;
cin>>a>>b;
adj[a][b]=1;
}
for(int i=1;i<=n;i++){
if(!visited[i]){
dfs(i,n);
}
}
int sum=100000;
int index=-1;
for(int i=0;i<t;i++){
int temp=0;
for(int j=1;j<=n;j++)if(store[i][j])temp=temp+j;
if(temp<sum){
sum=temp;
index=i;
}
}
for(int i=1;i<=n;i++)if(store[index][i])cout<<i<<" ";
// cout<<"hi"<<t<<endl;
return 0;
}
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