import java.util.*;
import java.io.*;
class Main {
public static void main
(String[] args
) { Scanner sc
= new Scanner
(System.
in); int t = sc.nextInt();
while (t-- > 0) {
int n = sc.nextInt();
int e = sc.nextInt();
int[][] mat = new int[n][n];
for (int k = 0; k < e; k++) {
int u = sc.nextInt();
int v = sc.nextInt();
mat[u - 1][v - 1] = 1;
mat[v - 1][u - 1] = 1;
}
for (int i = 0; i < n; i++) {
int c=0;
for (int j = 0; j < n; j++) {
// System.out.print(mat[i][j] + " ");
if(mat[i][j]==1)
c++;
}
}
}
}
}
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