$character = "0";    #character to print

@howmany = (
    [4,2,4,2,3,3,1,4],  #layout of "0" and " "
    [1,2,1,2,1,5,1,2,1,2,1,4],
    [4,2,4,2,3,3,1,4],
    [1,5,1,5,1,1,1,3,1,4],
    [1,5,4,2,1,2,1,2,4,1]
);

for ( 0 .. $#howmany ) {  # loop through @howmany

    foreach ( @{ $howmany[$_] } ) {  # loop through the arrays of @howmany

        for ( 1 .. $_ ) {  # print $character the number of times specified by the item of an array of @howmany
            print $character;
        }

        if ($character =~ /^0$/) {  #switch $character from "0" to " "
            $character = " ";
        } else {
            $character = "0";
        }

    }
    print "\n";
}