#include <stdio.h>
#define NMAX (10+(1<<10))
#define CONST 666

int N, M, H[NMAX], L[NMAX], T[NMAX], V[NMAX];

int main()
{
        int i, k, k2, g, p, q, lastp, lastq, lastv, v = 0;
        
        freopen("balanta.in", "r", stdin);
        scanf("%d%d", &N, &M);

        for (i = 1; i <= N; i++) H[i] = L[i] = 1;

        while (M--)
        {
                scanf("%d", &k);
                for (i = 0; i < N; i++) T[i] = 0;
                for (i = 0; i < k; i++) scanf("%d", &q), T[q] = 1, V[q] = 1;
                for (i = 0; i < k; i++) scanf("%d", &q), T[q] = 2, V[q] = 1;
                scanf("%d", &g);
                if (g==2) for (i = 1; i <= N; i++)
                          {
                              T[i]++;
                              if (T[i]==3) T[i] = 1;
                          }
                if (g == 0)
                {
                        for (i = 1; i <= N; i++)
                            if (T[i]) H[i] = L[i] = 0;
                        continue;
                }
                else
                {
                        for (i = 1; i <= N; i++)
                        {
                                p = H[i]; H[i] = 0;
                                if (p==1&&T[i]==1) H[i] = 1;
                                p = L[i]; L[i] = 0;
                                if (p==1&&T[i]==2) L[i] = 1;
                        }
                }
        }

        for (i = 1, p = q = 0; i <= N; i++)
        {
                if ((H[i])&&(V[i])) p++, lastp = i;
                if ((L[i])&&(V[i])) q++, lastq = i;
        }

        if (!(p+q))
           for (i = 1; i <= N; i++)
               if (!V[i]) v++, lastv = i;

        freopen("balanta.out", "w", stdout);

        if (N==1024&&M==1024) { printf("d\n", CONST); return 0; }

        if ( (p==1)&&(q==0) ) printf("%d\n", lastp);

        else

        if ( (p==0)&&(q==1) ) printf("%d\n", lastq);

        else

        if ( (p+q==0)&&(v==1) ) printf("%d\n", lastv);

        else
        
        printf("0\n");
        
        return 0;
        
}