1.1 ! misho 1: =>a{2,3} ! 2: a ! 3: aa ! 4: aaa ! 5: aaaa ! 6: =>ba{2,3}c ! 7: bac ! 8: baac ! 9: baaac ! 10: baaaac ! 11: =>a(b|c){2,3}d ! 12: abcd ! 13: acccd ! 14: abd ! 15: accccd