Calculate Average Fuel Consumption

You are given multiple test cases. In each test case, there are N journeys. For each journey, three integers T, C, and L denote the fuel consumption of different components. The total fuel consumption for a journey is computed as
\( T + C + L \).

Your task is to compute the average fuel consumption per test case. More formally, if a test case has N journeys and the fuel consumptions of these journeys are given by:

[ \text{Total}_j = T_j + C_j + L_j \quad \text{for } j=1,2,\dots,N, ]

then the average fuel consumption is:

[ \text{Average} = \text{round}\left( \frac{\sum_{j=1}^{N} (T_j + C_j + L_j)}{N} \right), ]

where round(x) rounds x to the nearest integer using standard rounding rules. Output one result for each test case on a separate line.

inputFormat

The input is read from standard input (stdin) and structured as follows:

• The first line contains an integer T representing the number of test cases.
• For each test case:
• The first line contains an integer N, the number of journeys.
• The next N lines each contain three space-separated integers T, C, and L.

outputFormat

For each test case, output a single line containing the computed average fuel consumption as an integer on standard output (stdout).

## sample

2
3
30 50 10
20 40 10
40 60 20
2
15 25 10
25 35 20

93
65

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