#include <stdio.h>

int r[100001], n, m;

int f(int);

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

    int i, tip, a, b;

    scanf("%d %d", &n, &m);

    for(i = 1; i <= n; ++i)
    {
        r[i] = i;
    }

    for(i = 1; i <= m; ++i)
    {
        scanf("%d %d %d", &tip, &a, &b);
        if(tip == 1)
        {
            if(f(a) != f(b))
            {
                if(a < b)
                {
                    r[b] = a;
                }
                else
                {
                    r[a] = b;
                }
            }
        }
        else
        {
            if(f(a) == f(b))
            {
                printf("DA\n");
            }
            else
            {
                printf("NU\n");
            }
        }
    }

    return 0;
}

int f(int a)
{
    if(r[a] != r[r[a]])
    {
        r[a] = f(r[a]);
    }
    return r[a];
}