#include <iostream>
#include <cstdio>
#define nmax 100001
using namespace std;
FILE *f=fopen("disjoint.in","r"),*g=fopen("disjoint.out","w");
int t[nmax],r[nmax],n;
void unite(int x, int y)
{
    if(r[x]>r[y])
        t[y]=x;
    else if(r[x]<r[y])
        t[x]=y;
    else
    {
        t[y]=x;
        r[x]++;
    }
}
int finds(int x)
{
    int r,i;
    for(r=x;t[r]!=r;r=t[r]);
    for(;t[x]!=x;x=t[x])
    {
        i=t[x];
        t[x]=r;
        x=i;
    }
    return r;
}
int main()
{
    int i,j,m,tip,x,y;
    fscanf(f,"%d %d",&n,&m);
    for(i=1;i<=n;i++)
    {
        t[i]=i;
        r[i]=1;
    }
    for(i=1;i<=m;i++)
    {
        fscanf(f,"%d %d %d",&tip,&x,&y);
        if(tip==1&&finds(x)!=finds(y))
            unite(x,y);
        else
        {
            if(finds(x)==finds(y))
                fprintf(g,"DA\n");
            else
                fprintf(g,"NU\n");
        }
    }
    fclose(f);
    fclose(g);
    return 0;
}