#include<bits/stdc++.h>
using namespace std;
using Int = long long;
template<typename T1,typename T2> inline void chmin(T1 &a,T2 b){if(a>b) a=b;}
template<typename T1,typename T2> inline void chmax(T1 &a,T2 b){if(a<b) a=b;}

//INSERT ABOVE HERE

const int BIT=17;
const int MAX=1<<BIT;
const int MSK=MAX-1;
using BS = bitset<MAX>;
BS res[1<<(22-BIT)];

signed main(){
  cin.tie(0);
  ios::sync_with_stdio(0);

  int n,s,x,y,z;
  cin>>n>>s>>x>>y>>z;

  BS all(0);
  for(int i=0;i<MAX;i++) all[i]=1;
  for(int i=0,a=s;i<n;i++){
    res[i>>BIT][i&MSK]=a&1;
    a=(1LL*x*a+y)%z;
  }

  int q;
  cin>>q;
  for(int i=0;i<q;i++){
    int a,b,c,d;
    cin>>a>>b>>c>>d;
    a--;c--;

    BS tmp(0);

    int p=((a>>BIT)+1)<<BIT;
    if(p<=b){
      tmp|=res[a>>BIT]>>(a&MSK);
      tmp|=(res[p>>BIT]&(all>>(MAX-(b-p))))<<(p-a);
    }else{
      tmp|=(res[a>>BIT]>>(a&MSK))&(all>>(MAX-(b-a)));
    }

    int q=((c>>BIT)+1)<<BIT;
    res[c>>BIT]^=tmp<<(c&MSK);
    res[q>>BIT]^=tmp>>(q-c);
  }

  for(int i=0;i<n;i++)
    cout<<(res[i>>BIT][i&MSK]?'O':'E');
  cout<<endl;
  return 0;
}