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ABR0010 - Чулуу

Газраас h өндөрт байгаа чулууны газарт унах хүртлэх хугацааг ол.

Input

h бутархай тоо өгөгдөнө

Output

Газарт унах хүртлэх хугацааг нь секундээр, таслалаас хойш нэг оронгийн нарийвчлалтайгаар гаргана

Example

Input:
2006.09

Output:
20.2

Нэмсэн:sw40
Огноо:2007-10-18
Хугацааны хязгаарлалт:1s
Эх кодын хэмжээний хязгаарлалт:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Програмчлалын хэлүүд:Бүгд дараах хэлүүдээс бусад: ASM32-GCC MAWK BC C-CLANG NCSHARP CPP14 CPP14-CLANG COBOL COFFEE D-CLANG D-DMD DART ELIXIR ERL FANTOM FORTH GOSU GRV JS-RHINO JS-MONKEY JULIA KTLN NIM NODEJS OBJC OBJC-CLANG OCT PERL6 PICO PROLOG PYPY PYPY3 PY_NBC R RACKET RUST CHICKEN SQLITE SWIFT UNLAMBDA VB.NET
Эх сурвалж:Абрамов С. А.

hide comments
2010-10-05 10:15:12 i.c
thanks

2010-04-04 11:20:22 Piotr KÄ…kol
Thanks! One more time I got AC (ACcepted) thanks to You. :-D

// g=9.8 v g=9.81 <= both are correct
// g=10 <= incorrect
2010-04-04 10:31:31 Bilegt
энэ одоо ямар томъёогоор бодох юм?
2010-04-04 10:28:27 Bilegt
a stone is falling from 'h' height. Print falling time in sec.
2010-04-02 19:31:55 Piotr KÄ…kol
This task seems easy although I don't know Mongolian so I'm not able to solve it and I will be thankful if anybody could translate it to English.
2009-10-31 13:44:27 sw09d037
ymar t1 ym ve 9.8 gj yj uzeh ym 10 ym u 9.81 eer ni blgahgui
2009-09-18 07:32:42 sw09d400
hundiin huchnii hurdatgaliig 9.8 gej tootsoj bga yum shig bn
2009-03-13 04:04:06 chuluunpvrew
saihan bodolgo bna.
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