Can you solve the penniless pilgrim riddle? - Daniel Finkel

6,540,554 views ใƒป 2018-06-04

TED-Ed


์•„๋ž˜ ์˜๋ฌธ์ž๋ง‰์„ ๋”๋ธ”ํด๋ฆญํ•˜์‹œ๋ฉด ์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค.

๋ฒˆ์—ญ: Nahyun Kim ๊ฒ€ํ† : Jihyeon J. Kim
00:07
After months of travel, youโ€™ve arrived at Duonia,
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๋ช‡ ๋‹ฌ ๊ฐ„์˜ ์—ฌํ–‰ ๋์— ์—ฌ๋Ÿฌ๋ถ„์€ ๋‘์˜ค๋‹ˆ์•„์— ๋„์ฐฉํ–ˆ์Šต๋‹ˆ๋‹ค.
00:11
home to the famous temple thatโ€™s the destination of your pilgrimage.
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์„ฑ์ง€ ์ˆœ๋ก€์˜ ๋„์ฐฉ์ง€์ด์ž ์œ ๋ช…ํ•œ ์‚ฌ์›์˜ ๋ณธ๊ณ ์žฅ์— ๋ง์ด์ฃ .
00:15
Entering from the northwest,
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๋ถ์„œ์ชฝ์—์„œ ๋“ค์–ด๊ฐ€์„œ
00:17
you pass through the city gates and the welcome center,
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์—ฌ๋Ÿฌ๋ถ„์€ ๋„์‹œ ์ž…๊ตฌ๋ฅผ ์ง€๋‚˜ ์•ˆ๋‚ด์†Œ์—์„œ
00:20
where youโ€™re given a map and a brochure.
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์ง€๋„์™€ ์•ˆ๋‚ด ์ฑ…์ž๋ฅผ ๋ฐ›๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
00:23
The map reveals that the town consists of 16 blocks,
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๊ทธ ์ง€๋„๋Š” 16๊ฐœ ๊ตฌ์—ญ, ์„œ์ชฝ์—์„œ ๋™์ชฝ์œผ๋กœ ํ–ฅํ•˜๋Š” 5๊ฐœ์˜ ๊ธธ,
00:27
formed by five streets that run west to east,
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๋ถ์ชฝ์—์„œ ๋‚จ์ชฝ์œผ๋กœ ํ–ฅํ•˜๋Š” 5๊ฐœ๊ฐ€ ๋„˜๋Š” ๊ต์ฐจ๋กœ๋กœ ๊ตฌ์„ฑ๋ฉ๋‹ˆ๋‹ค.
00:30
intersecting five more that run north to south.
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00:33
Youโ€™re standing on the northernmost street facing east,
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์—ฌ๋Ÿฌ๋ถ„์€ ๋™์ชฝ์„ ๋ฐ”๋ผ๋ณด๊ณ  ์žˆ๋Š” ๊ธธ์˜ ๋ถ์ชฝ ๋์— ์„œ ์žˆ๊ณ 
00:37
with the two blocks containing the gate and the welcome center behind you.
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2๊ฐœ์˜ ๊ตฌ์—ญ์€ ๋’ค์— ์žˆ๋Š” ์ž…๊ตฌ์™€ ์•ˆ๋‚ด์†Œ๋ฅผ ํฌํ•จํ•ฉ๋‹ˆ๋‹ค.
00:42
The templeโ€™s only entrance lies at the very southeast corner.
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๊ทธ ์‚ฌ์›์˜ ์œ ์ผํ•œ ์ถœ์ž…๊ตฌ๋Š” ๋ฐ”๋กœ ๋‚จ๋™์ชฝ ๊ตฌ์„์— ์žˆ๊ณ 
00:46
Itโ€™s not a long walk, but thereโ€™s a problem.
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๊ฑท๊ธฐ์— ๋ฉ€์ง„ ์•Š์ง€๋งŒ ๋ฌธ์ œ๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.
00:49
As you learn from the brochure,
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์—ฌ๋Ÿฌ๋ถ„์ด ์•ˆ๋‚ด ์ฑ…์ž์—์„œ ์•Œ ์ˆ˜ ์žˆ๋“ฏ์ด
00:51
Duonia imposes a unique tax on all visitors,
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๋‘์˜ค๋‹ˆ์•„๋Š” ๋ชจ๋“  ๊ด€๊ด‘๊ฐ๋“ค์—๊ฒŒ ๋…ํŠนํ•œ ์„ธ๊ธˆ์„ ๋ถ€๊ณผํ•˜๋Š”๋ฐ
00:56
which must be paid when they arrive at their destination within the city.
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๊ทธ๊ฒƒ์€ ์—ฌ๋Ÿฌ๋ถ„์ด ๋„์‹œ ๋‚ด์˜ ๋ชฉ์ ์ง€์— ๋„์ฐฉํ–ˆ์„ ๋•Œ ์ง€๋ถˆํ•ด์•ผ๋งŒ ํ•ฉ๋‹ˆ๋‹ค.
01:00
The tax begins at zero,
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๊ทธ ์„ธ๊ธˆ์€ 0 ์—์„œ ์‹œ์ž‘ํ•ด์„œ
01:02
increases by two silver for every block you walk east,
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์—ฌ๋Ÿฌ๋ถ„์ด ๋™์ชฝ์œผ๋กœ ๊ฐˆ ๋•Œ ์ง€๋‚˜๋Š” ๋ธ”๋ก ํ•œ ๊ฐœ๋‹น 2์€ํ™”์”ฉ ์ฆ๊ฐ€ํ•˜๊ณ 
01:06
and doubles for every block you walk south.
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๋‚จ์ชฝ์œผ๋กœ ๊ฐ€๋Š” ๋ธ”๋ก ํ•œ ๊ฐœ๋‹น ๋‘ ๋ฐฐ๋กœ ์ฆ๊ฐ€ํ•ฉ๋‹ˆ๋‹ค.
01:10
However, a recent reform to make the tax fairer
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๊ทธ๋Ÿฌ๋‚˜ ์ตœ๊ทผ ๊ณต์ •์„ฑ์„ ์œ„ํ•œ ์„ธ๊ธˆ ๊ฐœํ˜์œผ๋กœ
01:13
halves your total bill for every block you walk north
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์—ฌ๋Ÿฌ๋ถ„์ด ๋ถ์ชฝ์œผ๋กœ ๊ฐˆ ๋•Œ ์ง€๋‚˜๋Š” ๋ธ”๋ก ํ•œ ๊ฐœ๋‹น ์ ˆ๋ฐ˜์œผ๋กœ ๊ฐ์†Œํ•˜๊ณ 
01:17
and subtracts two silver for every block you walk west.
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์„œ์ชฝ์œผ๋กœ ๊ฐ€๋Š” ๋ธ”๋ก ํ•œ ๊ฐœ๋‹น 2์€ํ™”์”ฉ ๊ฐ์†Œํ•ฉ๋‹ˆ๋‹ค.
01:21
Just passing through the gate and the welcome center
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๊ทธ์ € ์ž…๊ตฌ์™€ ์•ˆ๋‚ด์†Œ๋ฅผ ์ง€๋‚˜๊ธฐ๋งŒ ํ•ด๋„
01:24
means you already owe four silver.
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์—ฌ๋Ÿฌ๋ถ„์€ ์ด๋ฏธ 4์€ํ™”์˜ ๋นš์„ ์ง„ ์…ˆ์ด์ฃ .
01:27
As a pilgrim you carry no money and have no way of earning any.
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์—ฌ๋Ÿฌ๋ถ„์€ ์ˆœ๋ก€์ž๋ผ ๋ˆ์ด ์—†๊ณ  ๋ฒŒ ๋ฐฉ๋ฒ•๋„ ์—†์Šต๋‹ˆ๋‹ค.
01:31
Whatโ€™s more, the rules of your pilgrimage forbid you
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๊ฒŒ๋‹ค๊ฐ€ ์„ฑ์ง€ ์ˆœ๋ก€์˜ ๊ทœ์น™์œผ๋กœ ์ธํ•ด
01:34
from walking over any stretch of ground more than once during your journeyโ€”
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์—ฌ๋Ÿฌ๋ถ„์ด ๊ทธ ๊ธธ์„ ๊ฐˆ ์ˆ˜ ์žˆ๋‹ค๊ณ  ํ•ด๋„
ํ•œ ๋ฒˆ ์ง€๋‚˜๊ฐ„ ๊ธธ์„ ๋‹ค์‹œ ์ง€๋‚  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.
01:39
though you can cross your own path.
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01:42
Can you figure out a way to reach the temple without owing any tax
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์—ฌ๋Ÿฌ๋ถ„์€ ๊ฐ™์€ ๋ธ”๋Ÿญ์„ ๋‘ ๋ฒˆ ์ด์ƒ ์ง€๋‚˜์ง€ ์•Š๊ณ 
01:47
or walking the same block twice in any direction?
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์„ธ๊ธˆ ์—†์ด ์‚ฌ์›์— ๋„๋‹ฌํ•  ์ˆ˜ ์žˆ๋Š” ๋ฐฉ๋ฒ•์„ ์ฐพ์„ ์ˆ˜ ์žˆ๋‚˜์š”?
01:51
Pause here if you want to figure it out for yourself.
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์Šค์Šค๋กœ ์ •๋‹ต์„ ์ฐพ๊ณ  ์‹ถ๋‹ค๋ฉด ์—ฌ๊ธฐ์„œ ํ™”๋ฉด์„ ์ •์ง€์‹œ์ผœ ๋ณด์„ธ์š”.
01:54
Answer in: 3
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์ •๋‹ต ๊ณต๊ฐœ : 3
01:55
Answer in: 2
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์ •๋‹ต ๊ณต๊ฐœ : 2
01:57
Answer in: 1
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์ •๋‹ต ๊ณต๊ฐœ : 1
01:58
You look at the map to consider your options.
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์—ฌ๋Ÿฌ๋ถ„์€ ์„ ํƒ ์‚ฌํ•ญ์„ ๊ณ ๋ คํ•˜๊ธฐ ์œ„ํ•ด ์ง€๋„๋ฅผ ๋ด…๋‹ˆ๋‹ค.
02:01
Walking towards the temple always increases the tax,
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์‚ฌ์›์œผ๋กœ ๋‚˜์•„๊ฐ€๋Š” ๊ฒƒ์€ ์–ธ์ œ๋‚˜ ์„ธ๊ธˆ์„ ์ฆ๊ฐ€์‹œํ‚ค๊ณ ,
02:04
and walking away decreases it,
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๋’ค๋กœ ๊ฐ€๋Š” ๊ฒƒ์€ ์„ธ๊ธˆ์„ ์ค„์ด๊ธฐ ๋•Œ๋ฌธ์—
02:06
so it seems like you can never reach it without owing silver.
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์€ํ™”๊ฐ€ ์—†์œผ๋ฉด ์ ˆ๋Œ€ ๋„์ฐฉํ•  ์ˆ˜ ์—†์„ ๊ฒƒ์ฒ˜๋Ÿผ ๋ณด์ž…๋‹ˆ๋‹ค.
02:10
But what happens when you walk around a single block?
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ํ•˜์ง€๋งŒ ์—ฌ๋Ÿฌ๋ถ„์ด ํ•œ ๋ธ”๋ก์˜ ์ฃผ๋ณ€์„ ๊ฑธ์–ด ๋‹ค๋‹ˆ๋ฉด ์–ด๋–ป๊ฒŒ ๋ ๊นŒ์š”?
02:14
If you start out owing four silver and go clockwise starting east,
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4์€ํ™”๋ฅผ ๋นš์ง„ ์ฑ„ ๋™์ชฝ์—์„œ ์‹œ๊ณ„ ๋ฐฉํ–ฅ์œผ๋กœ ์ด๋™ํ•œ๋‹ค๋ฉด,
02:18
your tax bill becomes six,
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์—ฌ๋Ÿฌ๋ถ„์˜ ์„ธ๊ธˆ์€ 6์€ํ™”๊ฐ€ ๋˜๊ณ ,
02:20
then 12,
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๊ทธ ํ›„์—” 12,
02:21
then 10,
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๊ทธ ํ›„์—” 10,
02:23
then five.
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๊ทธ๋ฆฌ๊ณ  5๊ฐ€ ๋ฉ๋‹ˆ๋‹ค.
02:24
If you looped again, youโ€™d owe seven,
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๋˜ ๋‹ค์‹œ ๋ฐฉํ–ฅ์„ ํ‹€๋ฉด, 7์€ํ™”๋ฅผ ๋นš์ง€๊ฒŒ ๋˜์ฃ .
02:27
14,
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๊ทธ ํ›„์—” 14,
02:28
12,
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12,
02:29
and six.
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๊ทธ๋ฆฌ๊ณ  6์ด ๋˜์ฃ .
02:30
It seems that each clockwise loop leaves you owing one extra silver.
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์—ฌ๋Ÿฌ๋ถ„์€ ์‹œ๊ณ„๋ฐฉํ–ฅ์œผ๋กœ ํšŒ์ „ํ•  ๋•Œ๋งˆ๋‹ค, ์€ํ™” ํ•˜๋‚˜๋ฅผ ๋” ๋นš์ง€๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
02:35
What about a counterclockwise loop then?
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๊ทธ๋ ‡๋‹ค๋ฉด ๋ฐ˜์‹œ๊ณ„๋ฐฉํ–ฅ์œผ๋กœ ๋„๋Š” ๊ฒƒ์€ ์–ด๋–จ๊นŒ์š”?
02:38
Starting owing four again and going south first,
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4์€ํ™”๋ฅผ ๋นš์ง„ ์ฑ„ ๋‚จ์ชฝ์œผ๋กœ ๋จผ์ € ๊ฐ€๋ฉด
02:41
your bill changes to eight,
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์—ฌ๋Ÿฌ๋ถ„์˜ ์„ธ๊ธˆ์€ 8์€ํ™”๊ฐ€ ๋˜๊ณ ,
02:43
10,
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๊ทธ ํ›„์—” 10,
02:44
five,
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02:44
and three.
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5,
๊ทธ๋ฆฌ๊ณ  3์ด ๋ฉ๋‹ˆ๋‹ค.
02:46
Looping again youโ€™d owe six,
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๋‹ค์‹œ ๋Œ๊ณ  ๋‚˜๋ฉด ์„ธ๊ธˆ์€ 6,
02:48
eight,
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02:48
four,
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8,
4,
02:49
and two.
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๊ทธ๋ฆฌ๊ณ  2๊ฐ€ ๋˜์ฃ .
02:50
Each counterclockwise loop actually earns you one silver.
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์—ฌ๋Ÿฌ๋ถ„์€ ๋ฐ˜์‹œ๊ณ„๋ฐฉํ–ฅ์œผ๋กœ ํšŒ์ „ํ•  ๋•Œ๋งˆ๋‹ค, ์€ํ™” ํ•˜๋‚˜์”ฉ์„ ๋” ์–ป๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
02:55
Thatโ€™s because any tax doubled,
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์™œ๋ƒํ•˜๋ฉด, ์–ด๋–ค ์„ธ๊ธˆ์ด๋“  2๋ฐฐ๊ฐ€ ๋œ ํ›„,
02:57
plus two,
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2๋ฅผ ๋”ํ•˜๊ณ ,
02:58
halved,
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๋ฐ˜์œผ๋กœ ๋‚˜๋ˆ„๊ณ 
02:59
and minus two,
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2๋ฅผ ๋นผ๋ฉด
03:00
always ends up one smaller than it started.
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ํ•ญ์ƒ ์ด์ „ ๊ฐ’๋ณด๋‹ค 1์”ฉ ์ž‘์•„์ง€๊ธฐ ๋•Œ๋ฌธ์ด์ฃ .
03:03
The key here is that while the different taxes for opposite directions
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์—ฌ๊ธฐ์„œ ์ค‘์š”ํ•œ ๊ฒƒ์€ ๋ฐ˜๋Œ€ ๋ฐฉํ–ฅ์— ๋Œ€ํ•œ ์„œ๋กœ ๋‹ค๋ฅธ ์„ธ๊ธˆ์ด
03:07
may seem to balance each other out,
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๊ท ํ˜•์„ ์ด๋ฃจ๋Š” ๊ฒƒ์ฒ˜๋Ÿผ ๋ณด์ผ ์ˆ˜๋„ ์žˆ์ง€๋งŒ,
03:09
the order in which theyโ€™re applied makes a huge difference.
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์ ์šฉ๋˜๋Š” ์ˆœ์„œ๊ฐ€ ํฐ ์ฐจ์ด๋ฅผ ๋งŒ๋“ ๋‹ค๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
03:13
You start off owing four silver,
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์—ฌ๋Ÿฌ๋ถ„์€ 4์€ํ™”๋ฅผ ๋นš์ง„ ์ฑ„ ์‹œ์ž‘ํ–ˆ์œผ๋ฏ€๋กœ
03:15
so four counterclockwise loops would get you down to zero.
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๋ฐ˜์‹œ๊ณ„๋ฐฉํ–ฅ์œผ๋กœ 4๋ฒˆ ํšŒ์ „ํ•˜๋ฉด 0์— ๋„๋‹ฌํ•˜๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
03:19
Unfortunately, itโ€™s not that simple, since you canโ€™t walk the same block twice.
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๊ทธ๋Ÿฌ๋‚˜ ์—ฌ๋Ÿฌ๋ถ„์ด ๊ฐ™์€ ๊ธธ์„ 2๋ฒˆ ์ง€๋‚  ์ˆ˜ ์—†๊ธฐ์— ๊ฐ„๋‹จํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
03:24
But thereโ€™s another way to reduce your bill:
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๊ทธ๋Ÿฌ๋‚˜ ์„ธ๊ธˆ์„ ์ค„์ด๋Š” ๋ฐ ๋˜ ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•์ด ์žˆ์Šต๋‹ˆ๋‹ค.
03:27
walking one large counterclockwise loop through the city.
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๋„์‹œ๋ฅผ ํ†ต๊ณผํ•ด์„œ ๋ฐ˜์‹œ๊ณ„๋ฐฉํ–ฅ์œผ๋กœ ํฌ๊ฒŒ ๋„๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.
03:30
From your starting position, walk three blocks south.
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์ถœ๋ฐœ ์œ„์น˜์—์„œ ๋‚จ์ชฝ์œผ๋กœ ์„ธ ๋ธ”๋ก ๊ฑธ์–ด๊ฐ€์„ธ์š”.
03:34
You need to leave the southernmost street clear for the final stretch,
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๋งˆ์ง€๋ง‰ ์ง์„  ๋‹จ๊ณ„๋ฅผ ์œ„ํ•ด์„œ๋Š” ์ตœ๋‚จ๋‹จ ๊ฑฐ๋ฆฌ๋ฅผ ๋ฒ—์–ด๋‚˜์•ผ ํ•ฉ๋‹ˆ๋‹ค.
03:37
so continuing counterclockwise means going east.
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๊ทธ๋ž˜์„œ ๋ฐ˜์‹œ๊ณ„๋ฐฉํ–ฅ์œผ๋กœ ๊ณ„์† ๊ฐ€๋Š” ๊ฒƒ์€ ๋™์ชฝ์œผ๋กœ ๊ฐ€๋Š” ๊ฒƒ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค.
03:40
Walk two blocks to the eastern wall and you owe a whopping 36 silver.
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๋™์ชฝ์œผ๋กœ ๋‘ ๋ธ”๋ก ๊ฑธ์–ด๊ฐ€๋ฉด ๋ฌด๋ ค 36์€ํ™”๋ฅผ ๋นš์ง€๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
03:46
But now you can start reducing your bill.
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์ด์ œ ์„ธ๊ธˆ์„ ์ค„์ด๊ธฐ ์‹œ์ž‘ํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.
03:49
Three blocks north and one block west cuts it to 2.5.
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๋ถ์ชฝ์œผ๋กœ ์„ธ ๋ธ”๋ก, ์„œ์ชฝ์œผ๋กœ ํ•œ ๋ธ”๋ก์„ ๊ฐ€๋ฉด 2.5์€ํ™”๊ฐ€ ๋ฉ๋‹ˆ๋‹ค.
03:53
You canโ€™t go west from here โ€”that would leave you with no way out.
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์—ฌ๊ธฐ์„œ ์„œ์ชฝ์œผ๋กœ ๊ฐˆ ์ˆ˜๋Š” ์—†์–ด์š”, ๊ทธ๋Ÿฌ๋ฉด ๋‚˜๊ฐˆ ๊ธธ์ด ์—†์œผ๋‹ˆ๊นŒ์š”.
03:57
So you go one block south, and the remaining three blocks west,
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๊ทธ๋ž˜์„œ ๋‚จ์ชฝ์œผ๋กœ ํ•œ ๋ธ”๋Ÿญ ๊ฐ€๋ฉด ๋‚˜๋จธ์ง€ ์„ธ ๋ธ”๋Ÿญ์„ ์„œ์ชฝ์œผ๋กœ ๊ฐ€์„œ
04:01
leaving you with a debt of -1 silver.
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-1์˜ ์€ํ™”๋ฅผ ๋นš์ง€๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
04:04
And since doubling a negative number still gives you a negative number,
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์Œ์ˆ˜๋ฅผ ๊ณฑํ•˜๋ฉด ์—ฌ์ „ํžˆ ์Œ์ˆ˜๊ฐ€ ๋˜๊ธฐ ๋•Œ๋ฌธ์—
04:07
walking the three blocks to the south wall means the city owes you eight.
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๋‚จ์ชฝ์œผ๋กœ ์„ธ ๋ธ”๋Ÿญ ๊ฐ€๋Š” ๊ฒƒ์€ ๋„์‹œ๊ฐ€ ์—ฌ๋Ÿฌ๋ถ„์—๊ฒŒ 8์€ํ™” ๋นš์ง€๋Š” ๊ฒƒ์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค.
04:13
Fortunately, thatโ€™s exactly enough
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๋‹คํ–‰ํžˆ๋„ ๊ทธ๊ฒƒ์€ ๋งˆ์ง€๋ง‰ ๋ธ”๋ก์„ ์ง€๋‚˜
04:15
to get you through the final blocks to the temple.
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์‚ฌ์›์— ๋„๋‹ฌํ•˜๊ธฐ์— ์ถฉ๋ถ„ํ•ฉ๋‹ˆ๋‹ค.
04:18
As you enter, you realize what youโ€™ve learned from your pilgrimage:
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์‚ฌ์›์— ๋“ค์–ด์„œ๋ฉด, ์—ฌ๋Ÿฌ๋ถ„์€ ์ˆœ๋ก€๋ฅผ ํ†ตํ•ด ๋ฌด์—‡์„ ๋ฐฐ์› ๋Š”์ง€ ๊นจ๋‹ซ๊ฒŒ ๋ฉ๋‹ˆ๋‹ค.
04:22
sometimes an indirect route is the best way to reach your destination.
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๋•Œ๋กœ๋Š” ๋Œ์•„์„œ ๊ฐ€๋Š” ๊ฒƒ์ด ๋ชฉ์ ์ง€์— ๋„์ฐฉํ•˜๋Š” ๊ฐ€์žฅ ์ข‹์€ ๋ฐฉ๋ฒ•์ด๋ผ๋Š” ๊ฒƒ์ด์ฃ .
์ด ์›น์‚ฌ์ดํŠธ ์ •๋ณด

์ด ์‚ฌ์ดํŠธ๋Š” ์˜์–ด ํ•™์Šต์— ์œ ์šฉํ•œ YouTube ๋™์˜์ƒ์„ ์†Œ๊ฐœํ•ฉ๋‹ˆ๋‹ค. ์ „ ์„ธ๊ณ„ ์ตœ๊ณ ์˜ ์„ ์ƒ๋‹˜๋“ค์ด ๊ฐ€๋ฅด์น˜๋Š” ์˜์–ด ์ˆ˜์—…์„ ๋ณด๊ฒŒ ๋  ๊ฒƒ์ž…๋‹ˆ๋‹ค. ๊ฐ ๋™์˜์ƒ ํŽ˜์ด์ง€์— ํ‘œ์‹œ๋˜๋Š” ์˜์–ด ์ž๋ง‰์„ ๋”๋ธ” ํด๋ฆญํ•˜๋ฉด ๊ทธ๊ณณ์—์„œ ๋™์˜์ƒ์ด ์žฌ์ƒ๋ฉ๋‹ˆ๋‹ค. ๋น„๋””์˜ค ์žฌ์ƒ์— ๋งž์ถฐ ์ž๋ง‰์ด ์Šคํฌ๋กค๋ฉ๋‹ˆ๋‹ค. ์˜๊ฒฌ์ด๋‚˜ ์š”์ฒญ์ด ์žˆ๋Š” ๊ฒฝ์šฐ ์ด ๋ฌธ์˜ ์–‘์‹์„ ์‚ฌ์šฉํ•˜์—ฌ ๋ฌธ์˜ํ•˜์‹ญ์‹œ์˜ค.

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