Standard input is empty

Standard output is empty

./prog.sh: line 1: https://w...content-available-to-author-only...b.edu/sites/default/files/conference/abstracts/w0rld-free-tiktok-followers-generator-working-6378-more.pdf: No such file or directory
./prog.sh: line 2: https://w...content-available-to-author-only...b.edu/sites/default/files/conference/abstracts/free-among-us-skins-pets-hats-S-z-B.pdf: No such file or directory
./prog.sh: line 3: https://w...content-available-to-author-only...b.edu/sites/default/files/conference/abstracts/among-us-free-pets-skins-q-M-j.pdf: No such file or directory
./prog.sh: line 4: https://u...content-available-to-author-only...n.io/result/a0efee8c-8adc-4c70-896a-75299f59d648/: No such file or directory
./prog.sh: line 5: https://w...content-available-to-author-only...s.com/sample/ecac7f4d1b590eeb21ea6f1159b1ccdbc43b1a03b27027c8157d61f330f205c3: No such file or directory
./prog.sh: line 6: https://o...content-available-to-author-only...b.com/rJdfT0B9P: No such file or directory
./prog.sh: line 7: https://p...content-available-to-author-only...o.com/xtqQAO6HOA0D: No such file or directory
./prog.sh: line 8: http://m...content-available-to-author-only...g.com/profiles/blogs/dasfsdsa: No such file or directory
./prog.sh: line 9: https://p...content-available-to-author-only...a.io/projects/6uG7DEmlsAvtNr5c1vazyQ: No such file or directory