80pts求hack

#include<cstdio>
#include<iostream>
using namespace std;
inline void Solve()
{
	int n,x,y;
	cin>>n>>x>>y;
	if(x+y>n-2) 
	{
		cout<<"-2\n";
		return ;
	}
	if(x%2==0) for(int i=1;i<=x+1;i++) cout<<(i%2==0?1:0)<<" ";
	else for(int i=1;i<=x+1;i++) cout<<(i%2==0?0:1)<<" ";
	for(int i=1;i<=n-2-x-y;i++) cout<<"0 ";
	for(int i=1;i<=y+1;i++) cout<<(i%2==0?-1:0)<<" ";
	cout<<"\n";
	return ;
}
int main()
{
	int t;
	cin>>t;
	while(t--) Solve();
	return 0;
}