#include <cstdio>
#include <cstring>
#include <vector>
#define NMAX 50005
using namespace std;
int n,m;
vector<int> A[NMAX];
int grad[NMAX], viz[NMAX];
int main()
{
    int i,j;
    // freopen("sortaret.in", "r", stdin);
    // freopen("sortaret.out", "w", stdout);
    scanf("%d %d", &n, &m);
    memset(grad,0,sizeof(grad));
    for(i=1;i<=m;i++)
    {
        int x,y;
        scanf("%d %d",&x,&y);
        A[x].push_back(y);
        grad[y]++;
    }
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=n;j++)
        {
            if(!viz[j] && grad[j] == 0)
            {
                viz[j] = 1;
                printf("%d ", j);
                for(int vecin : A[j])
                    grad[vecin]--;
                break;
            }
        }
    }
    
}