task1 = abc*.+
task2 = \w+.+123.*
task3 = .*\.
task4 = [c|m|f]an
task5 = [^b]og
task6 = [A-Z].*
task7 = waz{3,}up
task8 = a{2,}[bc]+
task9 = \d+.*
task10 = \d.\s+.*
task11 = ^Mission: successful$
task12 = ^(.*\w+)\.pdf$
task13 = ^(.*(\d{4}+))$
task14 = ^((\d{4}).(\d{2,4}+))$
task15 = .*(cats|dogs)
task16 = .*.