57. 
58. x = Dk(y) = (y1 + (26 k),, yi + (26 k)),
59. x = Dk(y) = (y1 + (33 k),, yi + (33 k)),
60. 
61. 
,
62. 
,
-
x = Dk(y) = (y1 + (26 k),, yi + (26 k)),
66..
x = Dk(y) = (y1 + (33 k),, yi + (33 k)),
-
,
-
,
69. 
2, 4, 5. 17
70.
3, 5, 9. 21
,
72..
73. A={a1,,an}
L ,
L ,
A={a1,,an}
76. , 
,
.
77. 
(4)
,
, ( -
, , , -.
,
, . ,
|
|
|
84. 
,
86. ?
, , ;
87. , , :
;
88. . :
, , , ;
