#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define vl vector<ll>
#define ff(aa, bb, cc) for(ll aa = bb; aa < cc; aa++)
#define pb push_back
#define all(aaa) aaa.begin(), aaa.end()
#define rall(aaa) aaa.rbegin(), aaa.rend()
#define pll pair<ll, ll>
#define fi first
#define se second
#define ed "\n"
vector<vl> conexiones;
vl val, route;
ll dfs1(ll cur, ll par){
ll maxx = 0;
for(auto &x : conexiones[cur]){
if(x != par){
ll res = dfs1(x, cur);
if(res > maxx){
maxx = res;
route[cur] = x;
}
}
}
if(maxx == 0) route[cur] = cur;
return maxx+val[cur];
}
int main(){
ll n, k;
cin >> n >> k;
conexiones = vector<vl>(n);
val = vl(n);
ff(i, 0, n-1){
ll a, b;
cin >> a >> b;
a--;
b--;
conexiones[a].pb(b);
conexiones[b].pb(a);
}
ff(i, 0, n){
cin >> val[i];
}
if(k == 1){
route = vl(n);
ll maxx = dfs1(0, -1);
vl arr;
ll cur = 0;
while(route[cur] != cur){
arr.pb(cur);
cur = route[cur];
}
arr.pb(cur);
cout << maxx << ed << arr.size() << ed;
for(auto &a : arr) cout << a+1 << " ";
return 0;
}
}
