#!/usr/bin/perl -w

use strict;
use warnings;

my %href;

open my $fh, "<", "File1.txt" or die "Cannot open File1: $!";

while (<$fh>) {
    chomp;
    push @{$href{$1}}, $2 if /(\S+)\s+(\S+)/;
}

while (my ($key, $value) = each(%href)) {
    print "$key, (@{$value})\n";
}

close $fh;

open $fh, "<", "File2.txt" or die "Cannot open File2: $!";

{
    local $/ = '>';

    while ( <$fh> ) {
        chomp;
        next unless ( s{ \A (\S+) \s+ (?= \d ) }{}xms and exists( $href{$1} ));

        my $name = $1;
        my @numbers = split /\D+/;

        for my $index (@{$href{$name}}) {
            next if $index > $#numbers;
            if ($numbers[$index] >= 20) {
                print "$name\t\t$index\t$numbers[$index]\n";
            }
        }
    }
}