Running Sum of Numbers Using Until Loop in Perl

I wrote this program to ask the user to give a series of numbers and then the program will compute the running sum of numbers using until loop in Perl programming language,

I wrote this math functions in C++ to help my friend in his C++ class I hope you will fund this math machine problem functions useful.

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Program Listing

# sum_until.pl
# Author   : Jake R. Pomperada,MAED-IT,MIT
# Date     : April 6, 2020   Monday  5:51 AM
# Location : Bacolod City, Negros Occidental
# Email    : jakerpomperada@gmail.com
# Website  : http://www.jakerpomperada.com
print("\n");
print("\tRunning Sum of Numbers Using Until Loop in Perl");
print("\n\n");
$num_val = 1;

until ($num_val >= 11) {
 print("\tGive Value in Item No. $num_val: ");
 chomp($num=<STDIN>);

 $sum = $sum+$num;
 $num_val++;
}
print("\n");
printf "\tThe total sum is $num_val.";
print("\n\n");
print("\t\tEnd of Program");

print("\n\n");