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#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define ft first
#define sd second
#define mid ((l+r)>>1)
#define ls rt<<1
#define rs ls|1
const int N=2e5+5;
int n,m;
vector<pii> G[N];
vector<int> Ring;
int deg[N],a[N];
int sz[N],dep[N],fa[N],Rt[N],son[N],dfn[N],Id[N],tim,top[N];
int tr[N<<2];
struct edge
{
int u,v,w;
}E[N];
int val[N];
bool vis[N];
void dfs1(int u,int pa,int root)
{
dep[u]=dep[fa[u]=pa]+(sz[u]=1);
Rt[u]=root;
for(pii i:G[u]){
if(i.ft==pa||deg[i.ft]>0)
continue;
int v=i.ft;
a[v]=i.sd;
dfs1(v,u,root);
sz[u]+=sz[v];
if(sz[son[u]]<sz[v])
son[u]=v;
}
}
void dfs2(int u,int tp)
{
Id[dfn[u]=++tim]=u;
top[u]=tp;
if(!son[u])
return;
dfs2(son[u],tp);
for(pii i:G[u])
if(i.ft!=fa[u]&&i.ft!=son[u]&°[i.ft]<=0)
dfs2(i.ft,i.ft);
}
void pushup(int rt)
{
tr[rt]=tr[ls]+tr[rs];
}
void build(int rt,int l,int r)
{
if(l==r){
if(deg[Id[l]]>0)
return;
tr[rt]=a[Id[l]];
return;
}
build(ls,l,mid),build(rs,mid+1,r);
pushup(rt);
}
void update(int rt,int l,int r,int x,int k)
{
if(l==r){
tr[rt]=k;
return;
}
if(x<=mid)
update(ls,l,mid,x,k);
else
update(rs,mid+1,r,x,k);
pushup(rt);
}
int query(int rt,int l,int r,int lf,int rg)
{
if(lf>r||l>rg)
return 0;
if(lf<=l&&r<=rg)
return tr[rt];
return query(ls,l,mid,lf,rg)+query(rs,mid+1,r,lf,rg);
}
namespace R
{
int tr[N],Id[N],n;
void upd(int x,int k){
for(;x<=n;x+=x&-x){
tr[x]+=k;
}
}
int qry(int x,int k=0){
for(;x;x-=x&-x){
k+=tr[x];
}
return k;
}
void dfs3(int u,int tp)
{
if(vis[u])
return;
vis[u]=1;
for(pii i:G[u]){
if(deg[i.ft]<=0)
continue;
if(Id[i.ft]==0)
Id[i.ft]=Id[u]+1;
if(vis[i.ft]==0||i.ft==tp)
val[i.ft]=i.sd;
dfs3(i.ft,tp);
}
}
}
bool cmp(int x,int y)
{
return R::Id[x]<R::Id[y];
}
int Qry(int u,int v)
{
int res=0;
while(top[u]^top[v]){
if(dep[top[u]]<dep[top[v]]) swap(u,v);
res+=query(1,1,n,dfn[top[u]],dfn[u]);
u=fa[top[u]];
}
if(dep[u]>dep[v]) swap(u,v);
res+=query(1,1,n,dfn[u]+1,dfn[v]);
return res;
}
signed main()
{
scanf("%lld%lld",&n,&m);
for(int i=1;i<=n;i++){
int u,v,w;
scanf("%lld%lld%lld",&u,&v,&w);
G[u].push_back({v,w});
G[v].push_back({u,w});
deg[u]++,deg[v]++;
E[i]={u,v,w};
}
queue<int> q;
for(int i=1;i<=n;i++)
if(deg[i]==1)
q.push(i),deg[i]=-1;
while(!q.empty()){
int u=q.front();q.pop();
for(pii i:G[u]){
if(deg[i.ft]==-1)
continue;
--deg[i.ft];
if(deg[i.ft]==1){
deg[i.ft]=-1;
q.push(i.ft);
}
}
}
for(int i=1;i<=n;i++)
if(deg[i]>0){
Ring.push_back(i);
dfs1(i,0,i);
dfs2(i,i);
}
build(1,1,n);
R::Id[Ring[0]]=1;
R::dfs3(Ring[0],Ring[0]);
sort(Ring.begin(),Ring.end(),cmp);
R::n=(int)Ring.size();
for(int i=0;i<R::n;i++)
R::upd(i+1,val[Ring[i]]);
while(m--){
int op,x,y,u,v;
scanf("%lld%lld%lld",&op,&x,&y);
if(op==1){
u=E[x].u,v=E[x].v;
if(deg[u]>0&°[v]>0){
int pos=max(R::Id[u],R::Id[v]);
if(min(R::Id[u],R::Id[v])==1&&pos==R::n)
pos=1;
int tmp=R::qry(pos)-R::qry(pos-1);
R::upd(pos,y-tmp);
}else{
int pos=(dep[u]<dep[v]?dfn[v]:dfn[u]);
update(1,1,n,pos,y);
}
}else{
if(deg[x]>0&°[y]>0){
if(R::Id[x]>R::Id[y])
swap(x,y);
int t1=R::qry(R::Id[y])-R::qry(R::Id[x]);
int t2=R::qry(R::Id[x])+R::qry(R::n)-R::qry(R::Id[y]);
printf("%lld\n",min(t1,t2));
}else{
if(Rt[x]^Rt[y]){
int res=Qry(Rt[x],x)+Qry(Rt[y],y);
if(R::Id[Rt[x]]>R::Id[Rt[y]])
swap(x,y);
int t1=R::qry(R::Id[Rt[y]])-R::qry(R::Id[Rt[x]]);
int t2=R::qry(R::Id[Rt[x]])+R::qry(R::n)-R::qry(R::Id[Rt[y]]);
printf("%lld\n",res+min(t1,t2));
}else{
printf("%lld\n",Qry(x,y));
}
}
}
}
return 0;
}
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