#include<stdio.h>
#define DIM 10001
struct nod
{
    int x;
    nod *urm;
};
nod *lst[DIM];
int b[DIM],c[DIM];
char q2[DIM*10];
void add (int a,int b)
{
    nod *p=new nod;
    p->x=b;
    p->urm=lst[a];
    lst[a]=p;
}
void query1 (int a,int s)
{
    nod *p;
    b[a]+=s;
    s=0;
    int st=1,dr=1;
    c[st]=a;
    while(st<=dr)
    {
        s+=b[c[st]];
        for(p=lst[c[st]];p;p=p->urm)
            c[++dr]=p->x;
        ++st;
    }
    q2[s]=a;
}
int main ()
{
    freopen("arbore.in","r",stdin);
    freopen("arbore.out","w",stdout);
    int n,m,i,a,s,q,x,y;
    scanf("%d%d",&n,&m);
    for(i=1;i<n;++i)
    {
        scanf("%d%d",&x,&y);
        if(x>y)
            add(x,y);
        else
            add(y,x);
    }
    for(i=1;i<=m;++i)
    {
        scanf("%d",&q);
        if(q==1)
            scanf("%d%d",&a,&s),query1(a,s);
        else
        {
            scanf("%d",&s);
            if(q2[s]==0)
                printf("-1\n");
            else
                printf("%d\n",q2[s]);
        }
    }
    return 0;    
}