import java.util.Scanner;

public class Main {

 public static void main(String[] args) {

  Scanner scanner = new Scanner(System.in);

  while (true) {

   int a = scanner.nextInt();

   int b = scanner.nextInt();

   if (a == 0 & b == 0)

    break;

   for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; 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 scanner = new Scanner(System.in);

  while (true) {

   int a = scanner.nextInt();

   int b = scanner.nextInt();

   if (a == 0 & b == 0)

    break;

   for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   }
   System.out.println();

  }
 }
} Main public static void main(String[] args) {

  Scanner scanner = new Scanner(System.in);

  while (true) {

   int a = scanner.nextInt();

   int b = scanner.nextInt();

   if (a == 0 & b == 0)

    break;

   for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   }
   System.out.println();

  }
 } main {

  Scanner scanner = new Scanner(System.in);

  while (true) {

   int a = scanner.nextInt();

   int b = scanner.nextInt();

   if (a == 0 & b == 0)

    break;

   for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   }
   System.out.println();

  }
 } Scanner scanner = new Scanner(System.in); scanner new Scanner(System.in) while (true) {

   int a = scanner.nextInt();

   int b = scanner.nextInt();

   if (a == 0 & b == 0)

    break;

   for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   }
   System.out.println();

  } true {

   int a = scanner.nextInt();

   int b = scanner.nextInt();

   if (a == 0 & b == 0)

    break;

   for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   }
   System.out.println();

  } int a = scanner.nextInt(); a scanner.nextInt() scanner.nextInt scanner int b = scanner.nextInt(); b scanner.nextInt() scanner.nextInt scanner if (a == 0 & b == 0)

    break; a == 0 & b == 0 a == 0 a 0 b == 0 b 0 break; for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   } int i = 0; int i = 0; i 0 i < a i a i++ i++ i {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   } {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   } for (int j = 0; j < b; j++) {

     System.out.print("#");

    } int j = 0; int j = 0; j 0 j < b j b 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 scanner = new Scanner(System.in);

  while (true) {

   int a = scanner.nextInt();

   int b = scanner.nextInt();

   if (a == 0 & b == 0)

    break;

   for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   }
   System.out.println();

  }
 }
} public class Main {

 public static void main(String[] args) {

  Scanner scanner = new Scanner(System.in);

  while (true) {

   int a = scanner.nextInt();

   int b = scanner.nextInt();

   if (a == 0 & b == 0)

    break;

   for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; 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 scanner = new Scanner(System.in);

  while (true) {

   int a = scanner.nextInt();

   int b = scanner.nextInt();

   if (a == 0 & b == 0)

    break;

   for (int i = 0; i < a; i++) {

    for (int j = 0; j < b; j++) {

     System.out.print("#");

    }
    System.out.println();

   }
   System.out.println();

  }
 }
}
