#include<cstdio>
using namespace std;
FILE*in=fopen("disjoint.in","r");
FILE*out=fopen("disjoint.out","w");
const int NMAX=100007;
int n,m,i,c,d,e;
int dad[NMAX],dep[NMAX];
int fd(int x)
{
    if(dad[x]==0)
    {
        return x;
    }
    int g=fd(dad[x]);
    dad[x]=g;
    return g;
}
void uni(int x,int y)
{
    int a,b;
    a=fd(x);
    b=fd(y);
    if(dep[a]<dep[b])
    {
        dad[a]=b;
    }
    else if(dep[a]>dep[b])
    {
        dad[b]=a;
    }
    else
    {
        dad[a]=b;
        dep[b]++;
    }
}
int main()
{
    fscanf(in,"%d%d",&n,&m);
    for(i=1;i<=m;i++)
    {
        fscanf(in,"%d%d%d",&c,&d,&e);
        if(c==1)
        {
            uni(d,e);
        }
        else
        {
            if(fd(d)==fd(e))
            {
                fprintf(out,"DA\n");
            }
            else
            {
                fprintf(out,"NU\n");
            }
        }
    }
}