#include <iostream>#include <cstdio>#include <cstring>#include <cmath>#define EPS 1e-12using namespace std;struct POINT{double x,y;}pp[1005],qq[1005];double my;int cp,cq,np,nq,are;double min(double x,double y){if(x<y) return x;return y;}int sig(double x){ if(fabs(x) < EPS) return 0; else if(x > 0) return 1; else return -1;}double crop(struct POINT *P,int s,int l, int r){ return (P[l].x - P[s].x)*(P[r].y - P[s].y) - (P[r].x - P[s].x)*(P[l].y - P[s].y);}double cala(int cc,int nn,struct POINT *P,double h){ double u1,u2; int s = cc; if(sig(P[s].y - h) >= 0) return 0.0; double a = 0.0; u1 = 0.0; u2 = 0.0; for (int i = s - 1; i > 0; --i) { if(sig(P[i].y - h) <= 0) { a += crop(P,s,i,i + 1); u1 = P[i].x; }else if(sig(P[i].y - h) > 0 && sig(P[i + 1].y - h) < 0) { u1 = (h - P[i].y)*(P[i].x - P[i + 1].x)/(P[i].y - P[i + 1].y) + P[i].x; a += (u1 - P[s].x)*(P[i + 1].y - P[s].y) - (P[i + 1].x - P[s].x)*(h - P[s].y); break; } } for ( int i = s + 1; i <= nn; ++i) { if(sig(P[i].y - h) <= 0) { a += crop(P,s,i - 1,i); u2 = P[i].x; }else if(sig(P[i].y - h) > 0 && sig(P[i - 1].y - h) < 0) { u2 = (h - P[i].y)*(P[i - 1].x - P[i].x)/(P[i - 1].y - P[i].y) + P[i].x; a += (P[i - 1].x - P[s].x)*(h - P[s].y) - (u2 - P[s].x)*(P[i - 1].y - P[s].y); break; }else break; } a += (u2 - u1)*(h - P[s].y); a = fabs(a/2);//cout<<" "<<a; return a;}double findh(double s,double t){double mid=(s+t)/2;double cs;while(s+EPS<=t){cs=cala(cp,np,pp,mid); cs+=cala(cq,nq,qq,mid);if(fabs(cs-are)<EPS)return mid;if(cs<=are)s=mid;elset=mid; mid=(s+t)/2;}return s;}int main(){int t;scanf("%d",&t);while(t--){scanf("%d",&are);scanf("%d",&np);cp=cq=1; for(int i=1;i<=np;i++){scanf("%lf%lf",&pp[i].x,&pp[i].y); if(pp[cp].y-pp[i].y>EPS)cp=i; }scanf("%d",&nq);for(int i=1;i<=nq;i++){scanf("%lf%lf",&qq[i].x,&qq[i].y);if(qq[cq].y-qq[i].y>EPS)cq=i;}my=min(min(pp[1].y,pp[np].y),min(qq[1].y,qq[nq].y)) ;printf("%.3lfn",findh(min(pp[cp].y,qq[cq].y),my));}return 0;}
