#include<stdio.h>
#include<stdlib.h>
void DFS(int sour,int **mat,int *visited,int V)
{
    printf("%d ",sour);
    visited[sour] =1;
    for(int i=0;i<V;i++)
    {
        if(mat[sour][i] !=0 && visited[i]==0)
        DFS(i, mat, visited, V);
    }
}
int main()
{
    int V,E,r,c,itr,u,v,w,sour;
    scanf("%d",&V);
    if(V<0){
        printf("Invalid input");
        return 0;
    }
    scanf("%d",&E);
    int **mat;
    int *visited;
    mat = (int**) malloc (V * sizeof(int*));
    for(r=0;r<V;r++)
      mat[r] = (int*) malloc (V * sizeof(int));
      for(itr=1;itr<=E;itr++){
          scanf("%d%d%d",&u,&v,&w);
          mat[u][v] = w;
      }
      scanf("%d",&sour);
      visited =(int*) malloc (V * sizeof(int));
      printf("DFS Traversal starting from vertex %d: ",sour);
      DFS(sour, mat,visited,V);
      return 0;