use strict;
use warnings;
my @stuff = 1 .. 10;
print( join(' a ',@stuff), $/ );
print( scalar join(' a ',@stuff), $/  );
__END__
1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 a 9 a 10
1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 a 9 a 10