// sortaret.cpp : Defines the entry point for the console application.
//

/*#include <cstdio>
#include <cstring>
#include <vector>
using namespace std;

#define NMAX 50100

int grad[NMAX],viz[NMAX],N,M;
vector<int> g[NMAX];

void rezolvare()
{
	for(int i=1;i<=N;i++)
		for(int j=1;j<=N;j++)
			if(!viz[j] && !grad[j])
			{
				viz[j]=1;
				printf("%d ",j);
				for(int k=0;k<g[j].size();k++)
					grad[g[j][k]]--;
				break;
			}
}

void citire()
{
	int a,b;
	scanf("%d %d",&N,&M);
	for(int i=1;i<=N;i++)
	{
		scanf("%d %d",&a,&b);
		g[a].push_back(b);
		grad[b]++;
	}
}

int main()
{
	freopen("sortaret.in","r",stdin);
	freopen("sortaret.out","w",stdout);

	citire();
	rezolvare();

	return 0;
}*/

#include <cstdio>
#include <cstring>
#include <vector>
using namespace std;

#define MAXN 50100
#define pb push_back

int N, M, viz[MAXN], deg[MAXN]; vector<int> G[MAXN];

void solve_and_write(void)
{
    int i, j, k;

    for(i = 1; i <= N; i++)
    {
        for(j = 1; j <= N; j++)
         if(!viz[j] && deg[j] == 0)
         {
            viz[j] = 1, printf("%d ", j);
            for(k = 0; k < G[j].size(); k++)
                deg[ G[j][k] ]--;
            break ;
         }
    }
}

void read_data(void)
{
    int i, a, b;

    scanf("%d %d\n", &N, &M);
    for(i = 1; i <= M; i++)
        scanf("%d %d", &a, &b), G[a].pb(b), deg[b]++;
}

int main(void)
{
    freopen("sortaret.in", "rt", stdin);
    freopen("sortaret.out", "wt", stdout);

    read_data();
    solve_and_write();

    return 0;
}