Multiplication Table Generator Using Hash in Perl

Write a program using hash that will ask the user to give a key value based on
the follow key values 5=>5,6=>6,7=>7,8=>8,9=>9 and 10=>10. The program will
generate multiplication table based on the user key values given. I am usin strawberry Perl as my Perl interpreter in writing this program.

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Sample Program Output

Program Listing

#  multiplication_table_hash.pl

# Author   : Jake R. Pomperada,MAED-IT,MIT

# Date     : April 14, 2020  Tuesday  2:35 PM

# Location : Bacolod City, Negros Occidental

# Email    : jakerpomperada@gmail.com

# Websites : http://www.jakerpomperada.com

#            http://www.jakerpomperada.blogspot.com

my %val_num = (5 => 5,

               6 => 6,

               7 => 7,

               8 => 8,

               9 => 9,

               10 => 10,

           );

printf("\n");

printf("\tMultiplication Table Generator Using Hash in Perl\n\n");

printf("\n");

printf("\tEnter a Key Number : ");

chomp( $val = <>);

printf("\n");

for $-(1..$val_num {$val}){

  printf'%5d',$_*$-for 1..$val_num{$val};

  print$/

}

printf("\n");

print " "// "The Key '$a' doesn't exist.\n";

printf("\n");

printf("\t\tEnd of Program");

printf("\n\n");