#include<fstream.h>
#include<stdlib.h>
#define NM 200//001
#define MM 400//001
#define endl "\n"
ifstream in("apm.in");
ofstream out("apm.out");

struct muchie{ int x,y,c;
						 };
int n,m,L[NM];
muchie v[MM],h[NM];
void citire(){
int i;
in>>n>>m;
for(i=0;i<m;i++)
 in>>v[i].x>>v[i].y>>v[i].c;
 }



	int min(int x,int y){
	if(x<y) return x;
	return y;
	}
	int max(int x,int y){
	if(x>y) return x;
	return y;
	}
	int fcmp(void const *a,void const *b){
	return((muchie*)a)->c-((muchie*)b)->c;
	}

	int Find(int x){
	if(x==L[x])
	return Find(L[x]);
	}

	void Union(int x,int y){
	int px=Find(x);
	int py=Find(y);
	if(px<py) L[py]=px;
	else L[px]=py;
	}

void main(){
int px,py;
int i,ms=0,j,ct=0;
citire();
qsort(v,m,sizeof(v[0]),fcmp);
for(i=1;i<=n;i++)
 L[i]=i;
 i=0;
 while(ms<n-1){

 do{
 px=Find(v[i].x);
 py=Find(v[i].y);
	if(px==py) i++;
	}while(px==py);
		}

	ct=ct+v[i].c;
	h[ms]=v[i];
	ms++;
	int a=max(px,py);
	int b=min(px,py);
	Union(b,a);
	out<<ct<<endl<<n-1<<endl;
	for(i=0;i<n-1;i++)
	out<<h[i].x<<" "<<h[i].y<<" "<<h[i].c<<endl;
				}
																																																																																																																																																								#include<string.h>