#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<iostream>
#include<algorithm>
#include<map>
#include<queue>
#include<vector>
using namespace std;
const int maxn=10010,maxm=100010;
int head[maxn],cn,n,m,sum,num;
bool flag;
long long he;
struct date
{
	int to,next;
	long long co;
}edge[maxm];
void addedge(int a,int b,int c)
{
	edge[cn].to=b;
	edge[cn].next=head[a];
	edge[cn].co=c;
	head[a]=cn++;
}
int read()
{
	int x=0;
	char ch;
	ch=getchar();
	while(ch<'0'||ch>'9')
		ch=getchar();
	while(ch>='0'&&ch<='9')
	{
		x=x*10+ch-'0';
		ch=getchar();
	}
	return x;
}
void dfs(int cur,int v,long long cost)
{
	if(cur==v)
	{
		flag=1;
		sum=cost;
		return ;
	}
	int i,to,c;
	for(i=head[cur];i!=-1;i=edge[i].next)
	{
		to=edge[i].to;
		c=edge[i].co;
		if(flag==1)
			return ;
		dfs(to,v,cost+c);
	}
	return ;
}
int main()
{
	freopen("diaoyu.in","r",stdin);
	freopen("diaoyu.out","w",stdout);
	int a,b,t,u,v;
	n=read();m=read();
	memset(head,-1,sizeof(head));
	for(int i=1;i<n;i++)
	{
		a=read();b=read();t=read();
		addedge(a,b,t);
	}
	for(int i=1;i<=m;i++)
	{
		u=read();v=read();
		flag=0;
		sum=0;
		dfs(u,v,0);
		if(flag==1)
		{
			num++;
			he+=sum;
		}
	}
	printf("%d\n%d",num,he);
}
/*
6 2
1 2 1
2 4 1
2 5 1
5 6 1
1 3 1
2 6
4 5

1
2
*/