#!/usr/bin/perl

use strict;
use warnings;

my $start = '10.10.0.0';
my $stop  = '10.10.0.0';
my $snm   = '255.255.0.0';
my $cidr  = '255.255.255.252';
my $end   = '0.0.0.3';
my $group = 4;

my $group_counter = 0;

if( $start eq $stop ){
    my @tmp   = split /\./, $stop;
    for( reverse 0..3 ){
        if( $tmp[$_] != 0 ){
            $tmp[$_]++;
            last;
        }
    }
    $stop = join ".", @tmp;
}

my @first_ip  = split /\./, $start;
my @second_ip = split /\./, $stop;
    
while(1){
    last if join( ".", @first_ip ) eq $stop;
    $group_counter++;

    print sprintf "%s %s %s %s\n", join(".", @first_ip),$snm,$cidr,$end;
    $first_ip[-1]++;

    for( reverse 1..3 ){
        if( $first_ip[$_] == 256 ){
            $first_ip[$_-1] += 1;
            $first_ip[$_]    = 0;
        }
    }
    
    if( $group_counter == 4 ){
        print "-" x 40, "\n";
        $group_counter = 0 ;
    }
}