#include <iostream>
#include <bits/stdc++.h>
#include <cstdio>
using namespace std;
int m, t[100002];
inline int tata(int x)
{
    while(t[x]!=0)
        x=t[x];
    return x;
}
int main()
{
    freopen("disjoint.in","r",stdin);
    freopen("disjoint.out","w",stdout);
    int op, x, y;
    scanf("%d",&m);
    scanf("%d",&m);
    for(int i=0;i<m;i++)
    {
        scanf("%d",&op);
        scanf("%d",&x);
        scanf("%d",&y);
        x=tata(x);
        y=tata(y);
        if(op==1)
            t[x]=y;
        else if(x==y)
                printf("DA\n");
             else
                printf("NU\n");
    }
    return 0;
}