63. a) The word "ремонт" is made up of letters from a cut-out alphabet. Then the cards with individual letters are thoroughly shuffled, after which four of them are randomly drawn and laid out in a row in the order of drawing. What is the probability of getting the word "море" in this way?

b) A similar operation is performed with the letters that initially formed the word "папаха". What is the probability of getting the word "папа" in this way?