#include <bits/stdc++.h>
#define endl '\n'
using namespace std;
struct Node
{
	long long x,y,z,c;
};
long long n,m,k,c;
vector<Node> ans; 
int main()
{
//	freopen("building.in","r",stdin);
//	freopen("building.out","w",stdout);
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n>>m>>k;
	for(long long i=1;i<=n;i++)
	{
		for(long long j=1;j<=m;j++)
		{
			cin>>c;
			long long x=i,y=j,z=1;
			while(z<m-j+1)
			{
				z++;
				ans.push_back({x,y,z,c});
			}
			while(y<j/2*3+(j%2))
			{
				y++;
				ans.push_back({x,y,z,c}); 
			}
			while(z<m+k)
			{
				z++;
				ans.push_back({x,y,z,c});
			}
		}
	}
	for(long long z=m+1;z<=m+k;z++)
	{
		for(long long x=1;x<=n;x++)
		{
			for(long long y=2;y<=m/2*3+2*(m%2);y+=3)
			{
				ans.push_back({x,y,z,z-m});
			}
		}
		for(long long y=1;y<=m/2*3+2*(m%2);y++)
		{
			ans.push_back({n+1,y,z,z-m});
		}
	}
	cout<<ans.size()<<endl;
	for(long long i=0;i<(long long)ans.size();i++)
	{
		cout<<ans[i].x<<" "<<ans[i].y<<" "<<ans[i].z<<" "<<ans[i].c<<endl;
	}
	return 0;
}