#include<stdio.h>
#include<stdlib.h>

void DFS(int **mat, int *visited, int V, int source){
    printf("%d ",source);
    visited[source] = 1;
    for(int i=0;i<=V;i++){
        if(mat[source][i] != 0 && visited[i] == 0){
            DFS(mat,visited,V,source);
        }
    }
}

int main(){
    int V,E,r,c,itr,u,v,w,source;
    scanf("%d",&V);
    if(V<0){
        printf("Invalid input");
        return 0;
    }
    scanf("%d",&E);
    int **mat;
    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;
    }
    int *visited;
    visited = (int*)malloc(V*sizeof(int));
    scanf("%d",&source);
    printf("DFS Traversal starting from verted %d: ",source);
    DFS(mat,visited,V,source);
    return 0;
}