When you're splitting on any whitespace, you want to use \s+ instead of " ".

except when you want to use " ", which does just what you want, including saving the hassle of the empty first element:

$ perl
#!/usr/bin/perl -w
use strict;

my $line = "  0\t10\n 9  4 \r 1  0  0 \t0  2  2  1  1  0";
my @config = split " ", $line;
for (@config) {
    print $_, "\n";
}
__END__
0
10
9
4
1
0
0
0
2
2
1
1
0
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