#include <stdio.h>

int v[100010];

int main()
{
    int n=0,m=0,i=0,a=0,b=0,c=0,min=0,max=0,j=0;
    freopen("disjoint.in","r",stdin);
    freopen("disjoint.out","w",stdout);
    scanf("%d%d",&n,&m);
    for (i=0; i<n+1; ++i) v[i]=i;
    for (i=0; i<m; ++i)
    {
        scanf("%d%d%d",&a,&b,&c);
        if (a==1)
        {
            min=b;
            max=b;
            if (c<b) min=c;
            if (c>b) max=c;
            for (j=1; j<n+1; ++j)
                if (v[j]==max)
                    v[j]=min;
        }
        else
        {
            if (v[b]==v[c])
                printf("DA\n");
            else
                printf("NU\n");
        }
    }
    return 0;
}