type vector=array[0..1025]of longint;
var h,l,a,b:vector;
    n,m,i,j,k,r,rez,nr:longint;

function gasit(n:longint;v:vector):boolean;
var i:longint;
begin
gasit:=false;
for i:=1 to k do
        if v[i]=n then
                begin
                gasit:=true;
                exit;
                end;

end;

begin
assign(input,'balanta.in');reset(input);
assign(output,'balanta.out');rewrite(output);
readln(n,m);
for i:=1 to n do
        begin
        h[i]:=1;
        l[i]:=1;
        end;
for j:=1 to m do
        begin
        read(k);
        for i:=1 to k do
                read(a[i]);
        for i:=1 to k do
                read(b[i]);
        read(r);
        if r=0 then
                begin
                for i:=1 to k do
                        begin
                        h[a[i]]:=0;
                        h[b[i]]:=0;
                        l[a[i]]:=0;
                        l[b[i]]:=0;
                        end;
                end;
        if r=1 then
                begin
                for i:=1 to n do
                        begin
                        if (gasit(i,a))and(h[i]=1) then
                                h[i]:=1
                        else
                                h[i]:=0;
                        if (gasit(i,b))and(l[i]=1) then
                                l[i]:=1
                        else
                                l[i]:=0;
                        end;
                end;
        if r=2 then
                begin
                for i:=1 to n do
                        begin
                        if (gasit(i,b))and(h[i]=1) then
                                h[i]:=1
                        else
                                h[i]:=0;
                        if (gasit(i,a))and(l[i]=1) then
                                l[i]:=1
                        else
                                l[i]:=0;
                        end;
                end;
        end;
for i:=1 to n do
        begin
        nr:=nr+h[i]+l[i];
        if (h[i]=1)or(l[i]=1) then
                rez:=i;
        end;
if nr=1 then
        writeln(rez)
else
        writeln(0);
close(input);close(output);
end.