import java.util.Scanner;

public class LabProgram $\{$

public static void main$($String$[]$ args$)\{$

Scanner scnr $=$ new Scanner$($System$.$in$)$;

int arrowhead $=$ scnr$.$nextInt$()$;

int arrowbody $=$ scnr$.$nextInt$()$;

$//$ Print arrowhead

for $($int i $=0$; i $<=$ arrowhead; i$++)\{$

for $($int j $=0$; j $<$ i; j$++)\{$

System.out.print$("")$;

$\}$

for $($int k $=0$; k $<$ arrowhead $-$ i; k$++)\{$

System.out.print$($arrowbody$)$;

$\}$

System.out.println$()$;

$\}$

$//$ Print arrow body

for $($int i $=0$; i $<$ arrowbody; i$++)\{$

for $($int j $=0$; j $<$ arrowhead; j$++)\{$

System.out.print$("0")$;

$\}$

for $($int k $=0$; k $<$ arrowbody; k$++)\{$

System.out.print$($arrowbody$)$;

$\}$

System.out.println$()$;

$\}$

$//$ Print reverse arrowhead

for $($int i $=$ arrowhead $-1$; i $>=0$; i$--)\{$

for $($int j $=0$; j $<$ i; j$++)\{$

System.out.print$("")$;

$\}$

for $($int k $=0$; k $<=$ arrowhead $-$ i; k$++)\{$

System.out.print$($arrowbody$)$;

$\}$

System.out.println$()$;

$\}$

$\}$

$\}$