#include"stdio.h"
 
int main(){
	int test;
	scanf("%d",&test);
	for(int t=0; t<test; t++){
		int m,n,on=0,A[50][50], B[50]={0};
		scanf("%d%d%d",&m,&n,&n);
		for(int i=0; i<n; i++)
		for(int j=0; j<n; j++){
			scanf("%d",&A[i][j]);
			if(A[i][j]) {
				B[j]++;
				on++;
			}
		}
 
		for(int i=0; i<m; i++){
			int min=B[0],k=0;
			for(int j=1; j<n; j++){  /// Update Min
				if(B[j]<=min) {
					min=B[j];
					k=j;
				}
			}
			B[k]=n-B[k];    /// Update trạng thái
			on-=2*min-n;
		}
		printf("%d\n",on);
	}
	return 0;
}

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NQoyMQoxMCAxMAoxIDAgMCAwIDAgMCAxIDAgMSAwIAoxIDAgMCAwIDEgMCAwIDAgMSAwIAowIDEgMSAwIDAgMSAxIDEgMSAwIAoxIDAgMCAxIDEgMSAxIDAgMSAwIAowIDEgMSAwIDAgMSAwIDAgMSAxIAoxIDEgMCAwIDAgMCAxIDEgMSAwIAowIDAgMSAwIDAgMCAwIDEgMCAxIAoxIDEgMCAxIDEgMCAwIDAgMSAxIAowIDAgMCAxIDAgMCAwIDEgMSAwIAowIDAgMSAwIDAgMSAwIDAgMSAwIAozMwoxMCAxMAowIDAgMCAxIDEgMSAwIDAgMSAxIAowIDAgMCAwIDEgMCAxIDEgMCAwIAoxIDAgMSAxIDAgMCAxIDAgMCAwIAowIDEgMSAxIDEgMCAwIDEgMCAwIAoxIDEgMCAxIDEgMCAxIDEgMSAxIAoxIDEgMSAxIDAgMSAwIDEgMSAxIAowIDEgMSAwIDEgMCAwIDEgMSAwIAoxIDEgMSAwIDEgMCAwIDAgMSAxIAoxIDAgMCAxIDAgMCAxIDEgMSAwIAoxIDAgMSAxIDEgMCAwIDAgMCAxIAoyNQoxMCAxMAowIDAgMSAwIDEgMCAxIDAgMSAwIAowIDEgMSAwIDAgMSAwIDEgMCAxIAowIDAgMSAxIDAgMCAwIDAgMSAwIAowIDEgMSAxIDAgMSAwIDEgMSAxIAowIDAgMCAwIDAgMSAxIDAgMCAxIAowIDEgMSAxIDEgMCAxIDEgMCAwIAowIDAgMSAxIDEgMSAwIDAgMCAwIAowIDEgMCAwIDEgMCAxIDAgMSAwIAowIDAgMSAwIDEgMCAxIDEgMCAxIAowIDAgMSAwIDEgMSAxIDEgMCAwIAozMAoxMCAxMAoxIDEgMCAxIDEgMCAxIDAgMCAwIAoxIDEgMSAxIDEgMSAwIDEgMSAxIAowIDEgMCAwIDAgMSAxIDEgMSAxIAoxIDEgMSAxIDAgMSAwIDAgMCAwIAoxIDEgMSAwIDAgMSAwIDEgMSAwIAoxIDEgMCAwIDAgMCAwIDAgMSAwIAowIDAgMCAwIDAgMCAxIDEgMCAwIAowIDAgMSAwIDAgMSAxIDEgMCAxIAowIDEgMCAxIDAgMSAwIDEgMCAwIAowIDEgMSAwIDAgMCAxIDAgMCAxIAo0NAoxMCAxMAowIDEgMSAwIDAgMCAxIDAgMCAwIAoxIDAgMSAxIDAgMCAwIDAgMSAxIAowIDAgMCAwIDAgMCAxIDAgMSAwIAoxIDEgMCAxIDAgMSAxIDAgMSAwIAoxIDAgMCAxIDEgMSAxIDAgMCAwIAoxIDEgMCAxIDEgMCAxIDEgMCAxIAowIDEgMCAwIDAgMSAxIDAgMCAwIAoxIDAgMCAxIDAgMSAxIDEgMCAxIAowIDAgMCAxIDAgMCAxIDEgMSAwIAoxIDAgMCAwIDEgMCAxIDAgMCAwIAo=

5
21
10 10
1 0 0 0 0 0 1 0 1 0 
1 0 0 0 1 0 0 0 1 0 
0 1 1 0 0 1 1 1 1 0 
1 0 0 1 1 1 1 0 1 0 
0 1 1 0 0 1 0 0 1 1 
1 1 0 0 0 0 1 1 1 0 
0 0 1 0 0 0 0 1 0 1 
1 1 0 1 1 0 0 0 1 1 
0 0 0 1 0 0 0 1 1 0 
0 0 1 0 0 1 0 0 1 0 
33
10 10
0 0 0 1 1 1 0 0 1 1 
0 0 0 0 1 0 1 1 0 0 
1 0 1 1 0 0 1 0 0 0 
0 1 1 1 1 0 0 1 0 0 
1 1 0 1 1 0 1 1 1 1 
1 1 1 1 0 1 0 1 1 1 
0 1 1 0 1 0 0 1 1 0 
1 1 1 0 1 0 0 0 1 1 
1 0 0 1 0 0 1 1 1 0 
1 0 1 1 1 0 0 0 0 1 
25
10 10
0 0 1 0 1 0 1 0 1 0 
0 1 1 0 0 1 0 1 0 1 
0 0 1 1 0 0 0 0 1 0 
0 1 1 1 0 1 0 1 1 1 
0 0 0 0 0 1 1 0 0 1 
0 1 1 1 1 0 1 1 0 0 
0 0 1 1 1 1 0 0 0 0 
0 1 0 0 1 0 1 0 1 0 
0 0 1 0 1 0 1 1 0 1 
0 0 1 0 1 1 1 1 0 0 
30
10 10
1 1 0 1 1 0 1 0 0 0 
1 1 1 1 1 1 0 1 1 1 
0 1 0 0 0 1 1 1 1 1 
1 1 1 1 0 1 0 0 0 0 
1 1 1 0 0 1 0 1 1 0 
1 1 0 0 0 0 0 0 1 0 
0 0 0 0 0 0 1 1 0 0 
0 0 1 0 0 1 1 1 0 1 
0 1 0 1 0 1 0 1 0 0 
0 1 1 0 0 0 1 0 0 1 
44
10 10
0 1 1 0 0 0 1 0 0 0 
1 0 1 1 0 0 0 0 1 1 
0 0 0 0 0 0 1 0 1 0 
1 1 0 1 0 1 1 0 1 0 
1 0 0 1 1 1 1 0 0 0 
1 1 0 1 1 0 1 1 0 1 
0 1 0 0 0 1 1 0 0 0 
1 0 0 1 0 1 1 1 0 1 
0 0 0 1 0 0 1 1 1 0 
1 0 0 0 1 0 1 0 0 0