#include<stdio.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,c,r,itr,u,v,w;
    scanf("%d",&V);
    if(V<0)
    {
        printf("Invalid input");
        return 0;
    }
    scanf("%d",&E);
    int **mat;
    int *visted;
    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,visted,V);
      retrun 0;
}