#include <iostream>
#include <math.h>
#include <string>
#include <iomanip>
using namespace std;
int main(){
	int n,m,k;
	cin>>n>>m;
	int a[n+2][m+2],b[n];
	int t=0,sum=0;
	for(int i=0;i<n+2;i++){
		for(int j=0;j<m+2;j++)
			a[i][j]=0;
	}
	for(int i=1;i<n+1;i++){
		for(int j=1;j<m+1;j++)
			cin>>a[i][j];
	}
	cin>>k;
	int x1,y1,x2,y2,temp;
	for(int i=0;i<k;i++){
		cin>>x1>>y1>>x2>>y2;
		temp=a[x1][y1];
		a[x1][y1]=a[x2][y2];
		a[x2][y2]=temp;
	}
	for(int i=1;i<n+1;i++){
		for(int j=1;j<m+1;j++)
			if(a[i][j]>a[i+1][j]&&a[i][j]>a[i-1][j]&&a[i][j]>a[i][j-1]&&a[i][j]>a[i][j+1]){
				sum++;
				b[t++]=i;
				b[t++]=j;
			}		
	}
	cout<<sum<<"\n";
	for(int i=0;i<n;i=i+2)
		cout<<b[i]<<" "<<b[i+1]<<" "<<endl;
	return 0;
}