#include<bits/stdc++.h>
using namespace std;

#define REP(i,a,b) for(i=a;i<b;i++)
#define rep(i,n) REP(i,0,n)

int T;
int N, K, L[10000];
int mp[501][501];

int chk[10100];

int main(){
  int i, j, k;

  scanf("%d",&T);
  while(T--){
    scanf("%d%d",&N,&K);
    rep(i,N) rep(j,N) scanf("%d",mp[i]+j);
    rep(i,K) scanf("%d",L+i);
    
    rep(i,N) rep(j,N){
      k = i*N + j + 1;
      if(k > K) k = 0;
      mp[i][j] = k;
    }

    rep(i,N) rep(j,N) printf("%d%c",mp[i][j],j==N-1?'\n':' ');
  }

  return 0;
}