---
languages_supported:
- NA
title: SUMTRIAN
category: NA
old_version: true
problem_code: SUMTRIAN
tags:
- NA
layout: problem
---
### All submissions for this problem are available.
Let's consider a triangle of numbers in which a number appears in the first line, two numbers appear in the second line, three in the third line, etc. Develop a program which will compute the largest of the sums of numbers that appear on the paths starting from the top towards the base, so that:
- on each path the next number is located on the row below, more precisely either directly below or below and one place to the right;
- the number of rows is strictly positive, but less than 100
- all numbers are positive integers between O and 99.
### Input
In the first line integer n - the number of test cases (equal to about 1000).
Then n test cases follow. Each test case starts with the number of lines which is followed by their content.
### Output
For each test case write the determined value in a separate line.
### Example
<pre>
<b>Input:</b>
2
3
1
2 1
1 2 3
4
1
1 2
4 1 2
2 3 1 1
<b>Output:</b>
5
9
</pre>
**Warning: large Input/Output data, be careful with certain languages** />