: 100 . : . : , - . , . ( , ) . . - , . , . "" ( ) . "" 20 180 . . , 100 . . "" 10 !
"/": 1 - 2 - , ...... 10 - - 11 - 12 - , 13 - , - 14 - ... 20 - " " 21 - 22 - > " "
"/// ": 1 - 2 - ... 9 - "" 10 - "" 11 - , 12 - 13 - ()... 20 - ** 21 - 22 - " ???"