#include <vector>
#include <stdio.h>
#include <algorithm>
#define NMAX 200055
#define MMAX 200055

int n,m,h[NMAX],t[NMAX];

void MakeSet(int x)
{
    for(int i=1;i<=n;++i)
        h[i]=0,t[i]=i;
}

int Find(int x)
{
    int r=x;
    while(t[r]!=r)r=t[r];
    int i=x,j;
    while(i!=r)
    {
        j=t[i];
        t[i]=r;
        i=j;
    }
    return r;
}

void Union(int x,int y)
{
    int rx=Find(x),ry=Find(y);
    if(rx==ry)return;
    if(h[rx] < h[ry])
        t[rx]=ry;
    else
    if(h[rx] > h[ry])
        t[ry]=rx;
    else
    {
        t[ry]=rx;
        h[rx]++;
    }
}

int main()
{
    FILE *fin = fopen("disjoint.in","r");
    FILE *fout = fopen("disjoint.out","w");
    int tip,x,y;
    fscanf(fin,"%d%d",&n,&m);
    for(int i=1;i<=n;++i)MakeSet(i);
    while(--m)
    {
        fscanf(fin,"%d%d%d",&tip,&x,&y);
        if(tip==1)
        {
            Union(x,y);
        }
        else
        {
            if(Find(x)==Find(y))fprintf(fout,"DA\n");
            else fprintf(fout,"NU\n");
        }
    }

}