#include <cstdio>
#define NMax 100001
using namespace std;
int n, m, tree_set[NMax], i, query, x, y, child1, child2;
int main()
{
    scanf("%d%d", &n, &m);
    for (i=1; i<=m; i++) {
        scanf("%d%d%d", &query, &x, &y);
        if (query==1) {
            child1=x;
            while (tree_set[child1] > 0)
                child1=tree_set[child1];
            child2=y;
            while (tree_set[child2] > 0)
                child2=tree_set[child2];
            tree_set[child1]=child2;
        }
        else {
            child1=x;
            while (tree_set[child1] > 0)
                child1=tree_set[child1];
            child2=y;
            while (tree_set[child2] > 0)
                child2=tree_set[child2];
            if (child1 == child2)
                printf("DA\n");
            else
                printf("NU\n");
        }
    }
    return 0;
}