#include <stdio.h>

int add[100];

int calc(int pos,int num) {
 int arr[100];
 int n,m;
 
 if (num==0) {return(0);}
 
 for (n=0;n<num;n++) {
  arr[n]=add[n];}
 for (m=0;m<pos;m++) {
  for (n=0;n<num-1;n++) {
   arr[n]+=arr[n+1];}
  }
 return(arr[0]);
 }

int main() {
 
 int n,m,x,num,nn,nm;
 
 scanf("%d",&num);
 for (n=1;n<=num;n++) {
  scanf("%d %d",&nn,&nm);
  for (m=0;m<nn;m++) {
   scanf("%d",&x);
   add[m]=x-calc(m,m);
   }
  for (m=nn;m<(nn+nm);m++) {
   x=calc(m,nn);
   printf("%d",x);
   if (m<(nn+nm-1)) {printf(" ");} else {printf("\n");}
   }
  }
  return 0;
 }