#include<stdio.h>
#include<string.h>
#define MOD 9973
int n,k;
struct Mat{
int m[15][15];
};
Mat x,y;
void init()
{
memset(x.m,0,sizeof(x.m));
memset(y.m,0,sizeof(y.m));
for(int i = 0;i < n;i++)
x.m[i][i] = 1;
}
Mat operator *(Mat a,Mat b)
{
Mat c;
for(int i = 0;i < n;i++)
for(int j = 0;j < n;j++)
{
c.m[i][j] = 0;
for(int k = 0;k < n;k++)
c.m[i][j] += (a.m[i][k] * b.m[k][j])%MOD;
c.m[i][j] %= MOD;
}
return c;
}
Mat Pow(Mat mat,Mat b,int n)
{
while(n)
{
if(n&1)
b = b*mat;
mat = mat * mat;
n >>= 1;
}
return b;
}
int main()
{
int T;
scanf("%d",&T);
while(T--)
{
scanf("%d%d",&n,&k);
init();
for(int i = 0;i < n;i++)
for(int j = 0;j < n;j++)
scanf("%d",&y.m[i][j]);
Mat ret = Pow(y,x,k);
int ans = 0;
for(int i = 0;i < n;i++)
ans += ret.m[i][i];
printf("%d\n",ans%MOD);
}
return 0;
}