Given a weighted, undirected and connected graph. The task is to find the sum of weights of the edges of the Minimum Spanning Tree.

**Input:**

The first line of input contains an integer **T** denoting the number of testcases. Then T test ases follow. The first line of each testcase contains two integers N,E denoting the number of nodes and number of edges. Then in the next line are E*3 space separated values a b w where a,b denotes an edge from a to b and w is the weight of the edge.

**Output:**

For each test case in a new line print the sum of weights of the edges of the Minimum Spanning Tree formed of the graph.

**User task:**

Since this is a functional problem you don't have to worry about input, you just have to complete the function **spanningTree()** which takes a graph **g** as its argument and returns an integer denoting the sum of weights of the edges of the Minimum Spanning Tree.

**Constraints:**

1 <= T <= 10

1 <= N, E <= 100

1 <= w <= 1000

**Example:
Input**:

2

3 3

1 2 5 2 3 3 1 3 1

2 1

1 2 5

**Output**:

4

5

**Example:
Testcase 1: ** Sum of weights of edges in the minimum spanning tree is 4.

Author: Shubham Joshi 1

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