import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
int H,W;

for(;;){
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}}}} import java.util.Scanner; Scanner java.util public class Main{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
int H,W;

for(;;){
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}}}} Main public static void main(String[] args){
Scanner scan = new Scanner(System.in);
int H,W;

for(;;){
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}}} main {
Scanner scan = new Scanner(System.in);
int H,W;

for(;;){
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}}} Scanner scan = new Scanner(System.in); scan new Scanner(System.in) int H H W; W for(;;){
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}} ; {
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}} {
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}} H = scan.nextInt() H scan.nextInt() scan.nextInt scan W = scan.nextInt() W scan.nextInt() scan.nextInt scan if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();} H == 0 && W == 0 H == 0 H 0 W == 0 W 0 break; {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();} for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();} int i = 0 ; int i = 0 ; i 0 i < H i H i++ i++ i {
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();} {
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();} for(int j = 0 ; j < W ; j++){
         System.out.print("#");} int j = 0 ; int j = 0 ; j 0 j < W j W j++ j++ j {
         System.out.print("#");} {
         System.out.print("#");} System.out.print("#") System.out.print System.out System System.out "#" System.out.println() System.out.println System.out System System.out System.out.println() System.out.println System.out System System.out String[] args args public class Main{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
int H,W;

for(;;){
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}}}} public class Main{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
int H,W;

for(;;){
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}}}} Main
import java.util.Scanner;
public class Main{
public static void main(String[] args){
Scanner scan = new Scanner(System.in);
int H,W;

for(;;){
H = scan.nextInt();
W = scan.nextInt();
if(H == 0 && W == 0)break;
else {
  for(int i = 0 ; i < H ; i++){
      for(int j = 0 ; j < W ; j++){
         System.out.print("#");}
         System.out.println();}
    System.out.println();}}}}