// input checker probB - ECNA2015

#include <iostream>
using namespace std;

int main(){

  int nr,nc,n,m;
  int r,c;

      cin>>nr>>nc>>n>>m;
      if(nr<1 || nr>10000 ||nc<1 || nc>10000) {
         cout<<"dimensions of screen incorrect"; return 1; }
      if(n<0 || m<0 || n+m>100) {
         cout<<"incorrect number of icons"; return 2; }
      for(int j=1;j<=n;j++){
        cin>>r>>c;
        if(r<0 || r>=nr || c<0 || c>=nc) {
          cout<<"deleted icon "<<j<<" is out of bounds "; return 3; }
      } 
      for(int j=1;j<=m;j++){
        cin>>r>>c;
        if(r<0 || r>=nr || c<0 || c>=nc) {
          cout<<"not deleted icon "<<j<<" is out of bounds "; return 4; }
      } 
      cout<<endl;

return 42;
}