#include <stdio.h>
#include <vector>

struct str{
	int first;
	int second;
	int third;
};
std::vector<str> ans;
int x[3010],y[3010];
int main()
{
	int a;
	scanf("%d",&a);
	for(int i=1;i<=a;i++) scanf("%d",&x[i]);
	for(int i=1;i<=a;i++) scanf("%d",&y[i]);
	int p1 = 1, p2 = 1;
	for(int i=2;i<=a;i++) if(x[p1]<x[i]) p1 = i;
	
	if(y[1] < (y[1]^x[p1]))
	{
		ans.push_back({2,p1,1});
		y[1] ^= x[p1];
	}
	
	for(int i=1;i<=a;i++)
	{
		if(x[i] > (x[i]^y[p2]))
		{
			ans.push_back({1,i,p2});
			x[i] ^= y[p2];
		}
	}
	ans.push_back({1,1,p2});
	x[1] ^= y[p2];
	
	for(int i=1;i<=a;i++)
	{
		if(i==p2) continue;
		if(y[i] < (y[i]^x[1]))
		{
			ans.push_back({2,1,i});
			y[i] ^= x[1];
		}
	}
	ans.push_back({1,1,p2});
	x[1] ^= y[p2];
	
	printf("%d\n",ans.size());
	for(int i=0;i<ans.size();i++) printf("%d %d %d\n",ans[i].first,ans[i].second,ans[i].third);
}