table.insert$($row$,$ tonumber$($num$)).-$ Convert each number $t$

end

table.insert$($grid$,$ row$).-$ Insert the row table into the gric

end

file:close$()-.$ Close the file

else

print$("$Error: Unable to open the file"$)$

return $--$ Terminate the program if the file cannot be opened

end

f$=$io$.$open $("$grid$.$txt$","$r$")$

io$.$input $(f)$

print$($io$.$read$())$

io$.$ close$()$

local Table

$\{4,6,5,2,0\},$

$\{2,3,4,8,7\},$

$\{1,9,3,6,2\},$

$\}$

$\{9,1,2,7,4\}$

print$($

Table$[1][1],$

Table$[2][1],$

Table$[3][1],$

Table$[4][1]$

print$($

Table$[3][1],$

Table$[3][2],$

Table$[3][3],$

Table$[3][4],$

Table$[3][5]$