#include <stdio.h>

int a[2000010]={0};

void printArr(int n){
	int i;
	for(i=1;i<=n;i++){
		printf("%d ", a[i]);
	}
	printf("\n");
}

int main(void){
	int i;
	int n, s,x,y,z;
	int q;
	
	scanf("%d %d %d %d %d", &n, &s, &x, &y, &z);
	
	a[1] = s;
	for(i=2;i<=n;i++){
		long long int tmp = (x*a[i-1]+y)%z;
		a[i] = (int)tmp;
	}
	
	scanf("%d", &q);
	
	for(i=0;i<q;i++){
		char dir = 1;
		int sq, tq, uq, vq;
		scanf("%d %d %d %d", &sq, &tq, &uq, &vq);
		
		if(sq < uq && uq <= tq && tq <= vq){
			dir = -1;
		}
		
		if(dir == 1){
			int dsu, duv;
			for( dsu=sq, duv=uq ; dsu <= tq ; dsu++, duv++){
				a[duv] = (a[dsu] + a[duv])%10;
			}
		}else{
			int dsu, duv;
			for( dsu=tq, duv=vq ; dsu >= sq ; dsu--, duv--){
				a[duv] = (a[dsu] + a[duv])%10;
			}
		}
	}
	
	for(i=1;i<=n;i++){
		if(a[i]&1){
			printf("O");
		}else{
			printf("E");
		}
	}
	printf("\n");
	return 0;
}