. .
, , , .. , ( , - , - ).
....... (1/3 +3)2
44..................35,4
46..................36,6
48..................38
50 .................40
52 ................ 40,6
54................. 42
56.................43,4
58.................44,6
60 ................46
.
2-4 .
:
:
............
40-42..................36
44-46..................37
48-50..................38
50-52..................39-40
52-54..................40-41
56-60..................41-44
. , " " . - . , .