First line
Let's take a break


Now I will have a space on the following line.
 
It is hard to see that the line is not empty

bla bla bla





Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque a odio lacus. Suspendisse tempor libero sem,
non pulvinar dui efficitur nec. Nullam sit amet quam vitae nibh cursus vehicula. Fusce orci nisi, scelerisque
lacinia leo non, sollicitudin consequat lectus. Cras ac enim diam. Sed pharetra massa pretium, tempor metus ac,
gravida odio. Nullam quis est non eros accumsan viverra quis a dolor. Nam sed lorem in orci elementum egestas
sit amet consectetur velit. Proin sit amet leo non elit tincidunt facilisis.

Pellentesque eu feugiat ex. Phasellus sodales leo in magna hendrerit ornare. Suspendisse eget neque id sem
faucibus euismod. Proin accumsan ipsum lorem, id bibendum mauris viverra sit amet. Vivamus sed nisi odio.
In molestie nunc in dolor convallis, at dignissim ante gravida. Etiam orci arcu, imperdiet quis lacus vitae,
dignissim mattis urna. Morbi maximus fringilla sodales. Donec lobortis metus ac urna cursus hendrerit.
Fusce nunc ipsum, aliquam in commodo a, pulvinar sit amet odio. Duis pharetra justo quis tincidunt pretium.
Aenean at elit sed nunc facilisis sollicitudin.

Fusce risus nisl, hendrerit et nisl ac, semper sodales sapien. Nullam non eros in nunc volutpat interdum.
Sed mollis mauris at ultrices ornare. In et neque purus. Phasellus libero eros, faucibus molestie ex id,
tempor vulputate ante. Nullam sed tellus id nulla sagittis tincidunt convallis a quam. Suspendisse nec ligula
tincidunt, iaculis sem consequat, scelerisque magna. Sed vitae turpis tortor. Suspendisse tincidunt, turpis a
fringilla viverra, ex arcu aliquet lorem, ut tempor quam turpis vitae dui. Proin eleifend pretium dolor sed
feugiat. Praesent dolor velit, scelerisque quis leo id, iaculis dignissim sem. Nulla bibendum ante vel urna
consequat molestie in commodo tellus. Sed sed odio eget felis imperdiet aliquam eget et ante. Sed ac sapien
ipsum. Maecenas commodo massa sit amet scelerisque volutpat.

Quisque venenatis ligula nec urna gravida volutpat. Phasellus varius augue lectus, in porta lectus volutpat ac.
Ut aliquam, turpis ac lobortis suscipit, sapien mauris fringilla augue, eleifend euismod orci elit aliquam orci.
Donec vitae purus sollicitudin, rutrum quam vel, varius libero. Cras bibendum mollis scelerisque.
Integer tincidunt ligula in nunc consequat, hendrerit suscipit eros porta. Vivamus at ante bibendum, fringilla
augue id, interdum odio. Suspendisse non magna sit amet eros cursus congue nec eu justo.

Nullam vitae egestas leo. In molestie sed felis ac gravida. Nam finibus felis odio, sed vulputate sapien
ullamcorper ut. Morbi nec faucibus risus, nec lobortis urna. Donec condimentum dolor id quam ullamcorper
malesuada. Nunc iaculis est nibh, at accumsan tortor viverra eu. Donec lacinia eu nisl ac ultrices.
Phasellus at felis nec massa euismod facilisis at volutpat massa. Aliquam id magna sem.
Ut gravida libero ac nunc faucibus hendrerit. 


That is enough random latin. Now to something else.

Cheers for DNA.

GAGAAGATAAGTCGCAAGGAGGGGGCGGGACCCACACCTCAGGAAAGCCGGAGAATTGGG
GCACGCAAGCGGGGGGGCTTTGATGACCCCCCAAAGGGCGAGGCATGCAGGAGGTGGAGG
AATTAAGTGAAACAGGGAAGGTTGTTAAACAGCACCGTGTGGGCGAGGCCTTAAGGGTCG
TGGTCCTCGTCTGGGCGGGGTCTTTGGGCGTCGACGAGGCCTGGTTCTGGGTAGGCGGGG
CTACTACGGGGCGGTGCCTGCTGTGGAAATGCCTGCCCGCGCGCTTCTGCCCAGGCGCAT
GGGGCATCGTACTCTAGCCTCCACTCCTGCCCTGTGGGCCTCCATCCCGTGCCCTCGCTC
TGAGCTGCGCCTGGACCTGGTTCTGCCTTCTGGACAATCTTTCCGGTGGAGGGAGCAAAG
TCCTGCACACTGGAGTGGTGTACTAGCGGATCAAGTATGGACACTGACTCAGACTGAGGA
GCAGCTCCACTGCACTGTGTACCGAGGAGACAAGAGCCAGGCTAGCAGGCCCACACCAGA
CGAGCTGGAGGCCGTGCGCAAGTACTTCCAGCTAGATGTTACCCTGGCTCAACTGTATCA
CCACTGGGGTTCCGTGGACTCCCACTTCCAAGAGGTGGCTCAGAAATTCCAAGGTGTGCG
ACTGCTGCGACAAGACCCCATCGAATGCCTTTTCTCTTTTATCTGTTCCTCCAACAACAA
CATCGCCCGCATCACTGGCATGGTGGAGCGGCTGTGCCAGGCTTTTGGACCTCGGCTCAT
CCAGCTTGATGATGTCACCTACCATGGCTTCCCCAGCCTGCAGGCCCTGGCTGGGCCAGA
GGTGGAGGCTCATCTCAGGAAGCTGGGCCTGGGCTATCGTGCCCGTTACGTGAGTGCCAG
TGCCCGAGCCATCCTGGAAGAACAGGGCGGGCTAGCCTGGCTGCAGCAGCTACGAGAGTC
CTCATATGAGGAGGCCCACAAGGCCCTCTGCATCCTGCCTGGAGTGGGCACCAAGGTGGC
TGACTGCATCTGCCTGATGGCCCTAGACAAGCCCCAGGCTGTGCCCGTGGATGTCCATAT
GTGGCACATTGCCCAACGTGACTACAGCTGGCACCCTACCACGTCCCAGGCGAAGGGACC
GAGCCCCCAGACCAACAAGGAACTGGGAAACTTTTTCCGGAGCCTGTGGGGACCTTATGC
TGGCTGGGCCCAAGCGGTGCTGTTCAGTGCCGACCTGCGCCAATCCCGCCATGCTCAGGA
GCCACCAGCAAAGCGCAGAAAGGGTTCCAAAGGGCCGGAAGGCTAGATGGGGCACCCTGG
ACAAAGAAATTCCCCAAGCACCTTCCCCTCCATTCCCCACTTCTCTCTCCCCATCCCCAC
CCAGTCTCATGTTGGGGAGGGGCCTCCCTGTGACTACCTCAAAGGCCAGGCACCCCCAAA
TCAAGCAGTCAGTTTGCACAACAAGATGGGGTGGGGGATATTGAGGGAGACAGCGCTAAG
GATGGTTTTATCTTCCCTTTATTACAAGAAGGAACAATAAAATAGAAACATTTGTATGG

Enough.
There are 19 empty lines and 66 non-empty lines.
Did you miss the last line which is empty?