#include <iostream>
#include <stdio.h>

using namespace std;

int main()
{
    freopen("disjoint.in", "r", stdin);
    freopen("disjoint.out", "w", stdout);

    int x,y,op,r[100000]={0},n,m;
    bool ok;
    cin>>n>>m;

    for(int i=1; i<=m; i++)
    {
        scanf("%d %d %d \n",&op, &x, &y);
        if(op==1)
        {
            if(r[x]==0)
                r[x]=x;
            r[y]=x;
            for(int i=1; i<=n; i++)
                if(r[i]==y)
                    r[i]=x;

        }
        else
        {
            if(r[x]==r[y])
                printf("DA \n");
            else
                printf("NU \n");
        }

    }

    return 0;
}