1
5
7
3 8
8 1 0 
2 7 4 4
4 5 2 6 5

30

#include<iostream>
using namespace std;
int max(int a,int b)
{
	if(a>b)
		return a;
	else return b;

}
int main()
{
	int n,i,j,s,k,a[102][102];
	cin>>k;
	while(k--)
	{
		cin>>n;
        for(i=1;i<=n;i++)
			for(j=1;j<=i;j++)
			{cin>>a[i][j];}
			for(i=n-1;i>0;i--)
			   for(j=1;j<=i;j++)
			   {s=max(a[i+1][j],a[i+1][j+1]);
			   a[i][j]+=s;}
	cout<<a[1][1]<<endl;
				
			
			
	}
return 0;
}