#include "bits/stdc++.h"
using namespace std;
#define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i))
#define rep(i,j) FOR(i,0,j)
#define each(x,y) for(auto &(x):(y))
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<": "<<(x)<<endl
#define smax(x,y) (x)=max((x),(y))
#define smin(x,y) (x)=min((x),(y))
#define MEM(x,y) memset((x),(y),sizeof (x))
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;

int main(){
    int N, S, X, Y, Z, Q;
    cin >> N >> S >> X >> Y >> Z >> Q;
    vll A(N);
    A[0] = S;
    rep(i, N - 1){
        A[i + 1] = (X*A[i] + Y) % Z;
    }
    
    vector<unsigned long long> v((sz(A)+63)/64);
    rep(i, N){
        A[i] %= 2;
        if(A[i])v[i / 64] |= 1ull << (i % 64);
    }

    while(Q--){
        int T, U, V;
        scanf("%d%d%d%d", &S, &T, &U, &V);
        S--; U--;
        while(S < T&&S % 64){
            if(v[S/64] >> (S % 64) & 1){
                v[U / 64] ^= 1ull << (U%64);
            }
            S++; U++;
        }
        T--; V--;
        while(S <= T&& (T+1) % 64){
            if(v[T/64] >> (T % 64) & 1){
                v[V / 64] ^= 1ull << (V%64);
            }
            T--; V--;
        }
        T++; V++;

        for(int i = S; i < T; i += 64){
            int j = U + i;
            int a, c, d;
            a = i / 64;
            c = j / 64, d = j % 64;
            unsigned long long x = 0, y = 0;
            x = v[c] ^(v[a] << d);
            if(d){
                y = v[c + 1] ^ (v[a] >> d);
            }
            v[c] = x;
            if(d)v[c + 1] = y;
        }
    }

    string ans;
    rep(i, N){
        if(v[i / 64] >> (i % 64) & 1)ans += 'O';
        else ans += 'E';
    }
    printf("%s\n", ans.c_str());
}