hdu 2560 java

import java.util.Scanner;




public 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 m=sc.nextInt();
int number[][]=new int[n][m];
int count=0;
for(int i=0;i<number.length;i++){
for(int j=0;j<number[i].length;j++){
number[i][j]=sc.nextInt();
if(number[i][j]==1){
count++;
}
}
}
System.out.println(count);
}
}
}