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RGB7234 - Косинус

cos(1+cos(2+...+cos((n-1)+cos(n))...) илэрхийллийг бод.

Input

Натурал тоо өгөгдөнө.

Output

Илэрхийллийн утга. Таслалаас хойш 3 оронгийн нарийвчлалтайгаар гарга.

Example

Input:
3

Output:
0.039

Нэмсэн:Bataa
Огноо:2013-01-23
Хугацааны хязгаарлалт:1s
Эх кодын хэмжээний хязгаарлалт:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Програмчлалын хэлүүд:ADA95 ASM32 BASH BF C NCSHARP CSHARP C++ 4.3.2 CPP C99 CLPS LISP sbcl LISP clisp D ERL FORTRAN HASK ICON ICK JAVA JS-RHINO JULIA LUA NEM NICE OCAML PAS-GPC PAS-FPC PERL PHP PIKE PRLG-swi PYTHON PYPY3 PYTHON3 RUBY SCALA SCM guile ST TCL WHITESPACE

hide comments
2019-12-10 04:26:02
haha ezzzzz
2019-11-30 03:48:10
bodson hun bval uguuch
2019-11-23 17:21:23
haha eezzz

2019-11-02 07:02:47
L3G3ND1R1
2019-11-02 06:41:21
awfdgvbhmn


Last edit: 2019-11-02 06:43:21
2019-11-02 06:24:47
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Last edit: 2019-11-02 06:41:28
2019-10-29 03:58:57
invite code!!!!!!!!!!!!!!!!!!!!!!!!
2019-08-11 12:42:38
amraa

Last edit: 2019-08-11 12:43:47
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