✕ ☞✖✂✁✗✄ ✕ ☞✘✂✏✙✑✚✆✛✞✡✜✣✢ ✕✥✤ ✏✦☞✡✧
★✪✩✬✫✮✭✪✯✱✰✲✴✳✶✵✸✷✺✹✼✻✺✽✾✳❀✿✙❁✣❂❄❃❆❅❈❇❆❉✙❊●❋❍■❇❆❏✎❇❑❍■❇❆▲❆▼■◆P❖◗❁P❉❘✿✙❍❑❋❙▼❚❏❑❍❑▼❯❇❱❏❲▲✘❇❆❊❚❃❑✿
✰❙✯✼❳❨★❬❩❩✭✪✷✱★✪✩❭✭❪✻❫✰★❴✯❛❵❆✰✻✺✽❜❁P❝❬▲❞◆❘❂❄❃❆❂❡❇❆❝❴❢❴❇❱◆❯▼❬✿❴❇✘✭✪✯✾✵✟✿❴❇❱◆❜✿
❣❛❤❞✐❦❥❧❣❜✐♥♠♣♦rqts✖✉ ✐❦✈❯q①✇③②✂④✖②✂⑤✚✈
⑥⑧⑦ ♠☛❣✣④⑨♠♣✐❦②✂❥☎q ⑩❑❶❱❶❆❷
❣❛♦r❥ ⑦ ✐❞♠❸❣❛♦✘❹✖④ ⑦ ✐❦❥❻❺❘❼✚♠✚⑤✚q✚♦✘❣❽⑩❑❾✣❿➀⑩❆⑩✗⑤✚❥☎q ⑩❑➁
➂➄➃➆➅➈➇❜➉✼➊P➇❜➋P➊➌➃r➍❚➎❚➏⑧➇✼➉❜➊➑➐✱➒❴➓
⑩➔❾→✇③⑤♣♠♣❹◗➣ ⑩➈❶❆❶❆❷
④ ⑦ ✇✥♦◗❺➌↔❆❾↕✇ ⑦ ❥☎②✂④➙♦✘❣
❥☎②✂✇③s◗♦❈♠①✐ ⑥➜➛ ②✂♦➙❣✣④ ⑦ ✐❦❥❧❣➌❺➌➁➝❾
⑦❴➞✼➟❴➠➆➡■➢❜➤❡➠➆➥➧➦❱➞✼➟ ❺
➨❄➩➭➫❈➯❞➲➳➯➸➵➺➯❄➻➽➼❴➲☛➵✱➾➳➚➄➪➀➶❱➯❑➯❄➹➔➘➄➼❴➵➺➴❲➲➔➵✱➚➄➘❛➵✱➯❄➘➄➷✚➵✱➯❦➷❲➯❦➪➬➯✓➶●➮✚➵✱➾➳➼✎➚➄➲●➱❑➚➄✃❄➚❐➘❮❒➸➵✱➯❄❰✒➩
Ï➈➩ÑÐ➀➾❲➚➄➪Ò➚❐➪Ó❒✓Ô◗➴➳➘Õ➵✮➚❐➻➳➘➄➼rÖ✪➾➳➯❡➚➄Ö✒➼➙➵✮➼❴➪➬➵✙➩Ó×❘❒❡Ö✪➾❧Ø➔➴➳➼❴➪➬➵✮➚❐➯❄➲☎➚❐➪ÓÙ❫➯❡➘➄➘➄➯➆ÚÛ➼✒➷✗➶➔➮✗❒❡➲❲➪➬ÚÛ➼✒❰✱➪ÒÔÜ❒❡❰➬➹❡➼❴➷
Ý✘Þ❆ßÒÞ❱àÒÞ
➫á❒❡➲➳➷☛×➀➩❱âr➲❲➘❐➮♣➯❡➲➳➼✎➯❡Ù❜➵✱➾➳➼✒➪➬➼✘➚❐➪➀Ö✒➯❄❰➬❰✱➼❴Ö❴➵✙➩
ã❲➩åä❑Ö✒➯❄❰➬➚➄➲➳✃❞❰✱➴❲➘➄➼✒➪❴æ
ã❲➩Õ➨✝×❘❒❡Ö✪➾çÖ✒➯❄❰➬❰✱➼❴Ö❴➵✎❒❡➲❲➪➬ÚÛ➼✒❰r➚➄➪ÓÚ✸➯❡❰➬➵✮➾èãÜÔ✓❒❡❰➬➹❑➪Ò➚➄➲❧é❜❒❡❰➬➵ Ý✘Þ❀ê
Ô✓❒❡❰➬➹❑➪ë➚➄➲❧é❜❒❡❰➬➵
ß
❒➸➲➳➷✡ì◗Ô✓❒❡❰✱➹➔➪➺➚➄➲✂é❜❒❡❰➬➵
à
➩
ã❲➩íÏîÐ➀➾➳➼❴❰✱➼✎➚➄➪➀➲➳➯❞➻❱➼✒➲➝❒➸➘❐➵ï➮ÜÙ❫➯❡❰➺❒❡➲✂➚➄➲➳Ö❴➯❄❰✱❰➬➼✒Ö❴➵Ó❒➸➲➳➪➬ÚÛ➼✒❰➺➯❄❰➺❒❡➲●➮✚➴❲➲➝❒❡➲➳➪✾Ú✸➼❴❰✱➼✒➷✗Ø➔➴➳➼✒➪❪ð
➵✱➚➄➯❄➲❲➪✒➩
ñ
➩➑ò❯➯❡➴✡Ô◗➴➳➪✾➵r➴➳➪✱➼◗❒❡➲❧ó
ß
➻❱➼✒➲❲Ö✒➚➄➘✺➩❈ô➺➯❄➴➳✃❄➾☎➻➝❒❡➻❱➼✒❰
Þ
❰✱➴➳➘❐➼✒❰Ò❒❡➲➳➷✡❰➬➴➳➶➳➶❱➼✒❰r❒❡❰➬➼✖➻❱➼✒❰➬Ô✓➚Õ➵✱➵✮➼❴➷❀➩
❹✘õ➝ö ➤●➢ ö➧õ ➠✙➦❱➡■➟ õ ➞✼÷❽ø❆ù❑➦❱ú↕ù●➠➆➡➆ûü➥➧➞❜➟❬➠➆➡■➢❜ú↕ù❑➞➽➠➆➟ õ ➡❚ù❧➞✼➦➝➠❦ý✟ù➔➡■ú→➥❫➠✒➠➆ù❑÷❯þ
ê
➩➭➫❈➚➄❒❡✃❄❰✱❒❡Ô✓➪✸❒❡❰✱➼✎➲➳➯➸➵➺➲➳➼✒Ö❴➼✒➪✱➪✱❒❡❰✱➚❐➘❐➮✚➷❲❰✮❒✙Ú➺➲✗➵✱➯❦➪➬Ö✙❒❡➘❐➼❡➩
ÿ❲➩✁r➚❐➱❡➼❈➮❄➯❄➴❲❰Ò❒❡➲❲➪➬ÚÛ➼✒❰✱➪Ó➯❄➲✂➵✮➾➳➼✎➪➬➾➳➼✒➼❬➵ë➻❲❰✱➯➆➱❑➚➄➷➳➼❴➷❀➩
ì➈➩✄✂ ➾❲➼✒➲↕➵✱➾➳➼Ü➚❐➲➔➱❑➚❐✃❄➚➄➘➄❒➸➵✮➯❄❰Ò✃❄➚❐➱❡➼✒➪✘➵✱➾➳➼Ü➪➬➚➄✃❄➲➳❒❡➘
Þ
➪➬➵✮❒❡❰➬➵✖❒➸➵✱➵✱➼✒Ô❦➻❲➵✮➚❐➲➳✃✂➵✮➾➳➼✓➻➳❰✱➯❄➶❲➘➄➼✒Ô❦➪✒➩Üò❯➯❡➴
Ú➺➚❐➘➄➘➽➾➝❒✙➱❄➼✘ÿ✆☎♥Ô✓➚❐➲❑➴➈➵✮➼✒➪➀ÚÛ➯❄❰✱➹➔➚❐➲➳✃♥➵✮➚➄Ô❦➼ÒÙ❫➯❄❰⑧➵✱➾➳➼✎Ø➔➴➳➼✒➪✾➵✮➚➄➯❡➲✗➻➝❒➸➻➽➼❴❰✒➩
q☎✐ ❥ç✐❦④⑨④✘②✚♠✚❥①④✖➣☛♦➜❤⑧⑤♣❼✚♦ ✐✞✝✂♦❈♠t②✂❥☎④ ⑦ ✈✛✉✡✐❞②❸⑤♣♠♣♦➜④♥✐❦✈Ûq❸④❞✐ q☎✐
❣✼✐ þ
✟✡✠☛✠✌☞ ✍✏✎✑✠ ✒✁✓✔✠☛✟✡✎✑✠ ✓✖✕ ✗✘✎✑☞ ✙✛✚✜☞✢✎✑✟✣✙✘✙✛✤✦✥
⑩ þ☛✡ Ù✟ã✌☞✎✍❽➨ ê✑✏ ☎ Þ ➵✮➾➳➼❴➲✒☞☎➚➄➪➀➼❴Ø❑➴➳❒❡➘✣➵✮➯
✓
Ý✕✔
Ï
✓
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ã
✓
à✖✔ ñ
✓
➫
✔➀ê
✓
×
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ÿ❲➩
➁
þ Ð➀➾➳➼➙Ö✒➚❐❰✱Ö✒➴❲Ô❦Ù❫➼❴❰✱➼✒➲❲Ö✒➼✎➯❡Ù ❒❞Ö❴➚➄❰➬Ö✒➘➄➼❈Ú➺➚Õ➵✮➾✂❰✮❒➸➷➳➚➄➴➳➪ÓÏ♥➚➄➪
✓
Ý✕✔✘✗
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✗
✓
à✖✔
ñ
✗
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✗
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✔☛✙✌✗
➩
✚
þ Ð➀➾❲➼✖➪✱➴❲Ô⑨➯❡Ù ➵✱➾➳➼✎➪✱Ô✓❒❡➘➄➘❐➼✒➪➬➵Ó❒➸➲➳➷✗➵✱➾➳➼✎➘❮❒❡❰➬✃❄➼✒➪✾➵ë➯➸Ù ➵✮➾❲➼➙➲➔➴➳Ô✖➶➽➼❴❰✱➪ ☎ Þê ➨➆Ï✜✛✆✢❃☎ Þ✛✆✢❇☎ Þ✣✙ ✛✆✢❆❒❡➲❲➷✌☎ ÞÏ ✙ ✛
➚❐➪
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☎❲➨✤✛
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à✖✔ ➨ Þñ Ï ✙
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✔
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➨❚ì✜✛
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× ✔ ➨ Þñ ➨➆Ï✜✛❲➩
⑩ þ Ð➀➾➳➼r➱❡❒➸➘➄➴➳➼r➯❡Ù✆☎✞✝✠✟✡✝✠✟✡✝✠☛
☎✌☞✍✟✎☞✍✟✎☞✍☛ ➚❐➪
✓
Ý✕✔
➨
✓
ß☛✔ ñ
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à✖✔
☎
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✓
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ñ
➁ þ ✡
➲☛➵✱➾➳➼✎➷➳➚❮❒❡✃❡❰✮❒❡Ô
Þ
➵✱➾➳➼✎➪✱➚✑✏✒➼✎➯❡Ù✼➵✮➾➳➼➙❒❡➲➳✃❡➘➄➼ Ý❈ß⑧à
➚➄➲✂➷➳➼❴✃❄❰✱➼❴➼✒➪
Þ
➚❐➪
A
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100
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✚ þ ✡ Ù✓✒ ☞✕✔ ➨
✏
ã◗➵✱➾➳➼✒➲
✓
☞✖✔➭Ï ✔✎✗
➼❴Ø➔➴➝❒❡➘➄➪
✓ Ý✕✔
Ï
ê ✓ ß✖✔
ã❄ÿ
✓ à✖✔
ÿ ñ
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➨
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➨ ☎✆☎
✘ þ Ð➀➾➳➼♥➷➳➚❮❒➸✃❄❰✮❒❡Ô ➪➬➾➳➯➆Ú➺➪ ñ ➶➳❰✱➚❐Ö✪➹❑➪r➼❴➲➳Ö✒➘❐➯❄➪✱➚❐➲➳✃✚❒♣➪➬Ø❑➴➳❒❡❰✱➼➸➩✖×❘❒❡Ö✪➾ç➶➳❰➬➚➄Ö✪➹
➾➳❒❡➪➺➘➄➼✒➲❲✃❡➵✮➾è➨ ✙ ❒❡➲➳➷✗➶➳❰✱➼✒❒❡➷❲➵✮➾è➨ ☎❲➩❘Ð➀➾➳➼➙➘➄➼❴➲➳✃❡➵✱➾✗➯❡Ù✼➵✮➾❲➼✘➪➬➚➄➷➳➼✎➯❡Ù✼➵✮➾➳➼
➼❴➲➳Ö✒➘❐➯❄➪✱➼❴➷✗➪➬Ø➔➴➝❒❡❰✱➼➙➚➄➪
✓
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✙ þ Ð➀➾➳➼✎✃❄❰✱➼✒❒➸➵✮➼❴➪➬➵Ó➲➔➴➳Ô◗➶❱➼✒❰➺➯❡Ù✛✚✗➯❄➲➳➷➝❒✙➮❑➪➺Ú➺➾➳➚➄Ö✪➾☛Ö✙❒❡➲☛➯❑Ö✒Ö✒➴❲❰Ó➚❐➲ ñ
ê
Ö✒➯❄➲➳➪➬➼✒Ö❴➴❲➵✮➚Õ➱❄➼➙➷➝❒✙➮➈➪Ó➚➄➪
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✓
✙
↔ þ ✂ ➾➳➼❴➲ Ý ➘❐➘❮❒❡➲✘➫❈➯❄➲➝❒➸➘➄➷➙➶➽➯➆Ú➺➘➄➪ Þ ➵✮➾❲➼✸➶➝❒❡➘❐➘❄➵✮❰✱❒➆➱❡➼✒➘❐➪➌❒➸➵✸➨ ñ❄ñ ➹➔➚❐➘➄➯❄Ô❦➼❴➵✱❰✱➼✒➪P➻❱➼✒❰❜➾➳➯❄➴➳❰❴➩ ✡ Ù➝➵✱➾➳➼✸➷➳➚❐➪➬➵✮❒❡➲➳Ö✒➼
➵✱➾➳➼✎➶➝❒❡➘❐➘❛➵✮❰✱❒➆➱❡➼✒➘❐➪Ó➚❐➪ÓÏ ☎♥Ô✓➼❬➵✮❰➬➼✒➪➀➵✮➾➳➼❴➲☛➵✱➾➳➼r➵✮➚❐Ô✓➼ Þ ➚➄➲✂➪➬➼✒Ö✒➯❡➲➳➷➳➪ Þ ➵✮➾➳❒➸➵➀➵✮➾➳➼✎➶➝❒➸➘➄➘❛➵✱❰✮❒✙➱❄➼❴➘➄➪➺➚➄➪
✓
Ý✕✔
☎
✓
ß☛✔
☎
✁
✓
à✖✔
☎
✗
✓
➫
✔
✗
✂
✓
×
✔
✗
✁
✄ þ Ý
➶➽➼✒❒❡Ô ➯❡Ù✼➘➄➚➄✃❡➾➔➵✸➪✱➾➳➚❐➲➳➼✒➪⑧Ù❫❰➬➯❄Ô ❒◗➻➽➯❄➚❐➲●➵Óä
Þ
❰➬➼✆☎➝➼❴Ö❴➵✮➪➺➯✞✝
❒☛❰✱➼✟☎➝➼✒Ö❬➵✮➯❄❰✖❒➸➵◗➻❱➯❄➚➄➲●➵✘é
Þ
❒❡➲➳➷❻❰✱➼✒❒❡Ö✪➾➳➼✒➪◗❒☎➻➽➯❡➚➄➲●➵➙Ð ➪✱➯
➵✱➾➝❒➸➵Óé✟Ð ➚❐➪➀➻➽➼❴❰✱➻❱➼✒➲➳➷➳➚❐Ö✒➴➳➘➄❒❡❰⑧➵✮➯❦ôëä➽➩➝Ð➀➾➳➼❴➲✒☞☎➚➄➪
T
S
R
P
26
o
x
o
x
o
✓
Ý✕✔ Ï❡ÿ✞✠
✓
ß☛✔ ã●Ï✡✠
✓
à✖✔ ã●ì✡✠
✓
➫ ✔ ã ✙ ✠
✓
× ✔ ñ ê ✠
❷ þ ✡
Ù☞☛ ✔✍✌
✏
ã✏✎✑✌ ✔✍✒ ✏ ñ
❒❡➲➳➷✓✒ ✔✍☛ ✏✛ê➈Þ
➵✮➾❲➼✒➲✓☛ ✔✍✌✛✔✍✒Ò➼❴Ø❑➴➳❒❡➘➄➪
✓
Ý✕✔
ÿ
✓
ß✖✔
ì
✓
à✖✔✖✙
✓
➫
✔
✛
✓
×
✔
➨❚Ï
❶ þ
Ð➀➾❲➼❞➱❡➯❄➘➄➴❲Ô✓➼◗➯➸Ù✸❒♣❰➬➼✒Ö❬➵✪❒❡➲➳✃❡➴➳➘❮❒❡❰Ò➶➽➯✕✔❧➚❐➪rÿ ñ
✙
☎ÜÖ✒➴➳➶❲➚➄Ö♥Ö✒➼❴➲●➵✮➚➄Ô❦➼❴➵✱❰✱➼❴➪
Þ
❒❡➲➳➷❧➵✱➾➳➼◗➘➄➼❴➲➳✃❡➵✱➾➳➪r➯❡Ù❘➵✮➾➳➼
➪➬➚➄➷➳➼❴➪➙❒❡❰✱➼❞➚➄➲✡➵✱➾➳➼❞❰✮❒➸➵✱➚➄➯☛Ï➈æ❭ã❲æ
ê
➩♥Ð➀➾➳➼❞➘➄➼❴➲➳✃❡➵✱➾
Þ
➚➄➲çÖ✒➼❴➲●➵✮➚➄Ô❦➼❴➵✱❰✱➼❴➪
Þ
➯❡Ù❯➵✮➾➳➼❞➪✱➾❲➯❄❰➬➵✱➼✒➪➬➵➙➪➬➚➄➷➳➼❞➯❡Ù❯➵✮➾➳➼
➶❱➯✕✔✂➚➄➪
✓
Ý✕✔
ÿ
✓
ß☛✔
➨ ☎
✓
à✖✔
➨❚Ï
✓
➫
✔☛✙
✓
×
✔
➨➆ÿ
⑩❑❾ þ
Ý
ÔÜ❒➸❰✱Ö✪➾❞✃❄➯❑➼✒➪➌➵✮➾❲❰✱➯❄➴➳✃❡➾❞➵✱➾➳➼➀➪➬➵✱❰✱➼❴➼❴➵✮➪❯➯❡Ù➽❒❈➵✮➯➆Ú➺➲♥Ù❫❰✱➯❄Ô
➵✱➾➳➼♥➪✱Ö✪➾❲➯➈➯❄➘
✓
ä
✔
➵✮➯♣➵✮➾❲➼◗Ö✒➯❄Ô❦Ô◗➴➳➲❲➚❐➵ï➮☛Ö✒➼❴➲➔➵✱❰✱➼
✓
à➀à✖✔
➩ ✡ Ù
➵✱➾➳➼⑧Ô✓❒❡❰✱Ö✪➾✖Ö✙❒❡➲♥➯❄➲❲➘❐➮r➵✮❰✱❒✙➱❄➼✒➘➳×❯❒➸➪➬➵✟➯❄❰➌ä➈➯❄➴❲➵✱➾
Þ
➵✱➾➳➼✒➲◗➵✱➾➳➼
➲➔➴➳Ô✖➶➽➼❴❰Ó➯➸Ù ➷➳➚✖✝❛➼❴❰✱➼❴➲➔➵Ó➪➬➾➳➯❄❰➬➵✱➼✒➪✾➵Ò❰➬➯❄➴❲➵✮➼❴➪➺➚➄➪
S
CC
East
→
←
South
⑩❱⑩ þ ×❯❒➸Ö✪➾á➪➬➚➄➷➳➼↕➯❡Ù♥➵✮❰➬➚❮❒❡➲➳✃❡➘➄➼ ➚➄➪✗➷➳➚❐➱❑➚➄➷❲➼✒➷ ➚❐➲➔➵✱➯ ã
➼❴Ø➔➴➝❒❡➘❛➻➳❒❡❰➬➵✱➪✒➩✟Ð➀➾➳➼❈❰✱❒➸➵✮➚❐➯✘➯➸Ù✣➵✮➾➳➼Ò❒❡❰✱➼✒❒✖➯❡Ù❀➵✱➾➳➼❈➾➳➼ ✔➳❒➸✃❄➯❄➲
✁✄✂ ✂✆☎Óò✞✝ç➵✱➯♥➵✮➾➳➼➙❒❡❰➬➼✙❒❞➯❡Ù❜➵✱❰✱➚➄❒❡➲➳✃❄➘❐➼ Ý❈ß⑧à
➚➄➪
C
A
Z
B
Y
X
W
U
V
|||
|||
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||
||
||
|
|
|
✓ Ý✕✔
✂
✟
✓ ß✖✔ ✗
✁
✓ à✖✔
☎
✗
✓
➫
✔
✁
✓
×
✔
✂
☛
⑩➈➁
þ✠✟ ✎✄✡❦❒❡➲➳➷☞☛✓❒❡❰➬➼✖➻❱➯❄➪✱➚Õ➵✮➚❐➱❡➼✖➲➔➴➳Ô◗➶❱➼✒❰➬➪ëÙ❫➯❄❰ÓÚ➺➾➳➚➄Ö✪➾ ☎
✌
✔ ☎
✍
✔ ☎
✎
✏
➨♥❒❡➲❲➷ ✟ ✡ ✏✑✏
➩ÒÐ➀➾➳➼❴➲ ✟ ✔✒✡
➼❴Ø➔➴➝❒❡➘➄➪
✓
Ý✕✔ ✎✔✓
✎✖✕
☎
✓
ß✖✔
➨ ✍
☎
✎
✍
☎
✓
✓
à✖✔ ✎✖✕ ☎
✎✗✓
✓
➫
✔ ✓
✎
✓
☛ ✍❽➨
✔
✓
×
✔✄✏
✓
☛ ✍➭➨
✔
⑩
✚
þ ✡
Ù➌Ï✙✘ ✔Ñã✙✚ ✏ ñ
➨
Þ
Ú➺➾➳➼✒❰➬➼✑☞✡❒❡➲➳➷✜✛✚❒❡❰➬➼r➲➝❒➸➵✮➴❲❰✮❒❡➘✣➲➔➴➳Ô◗➶❱➼✒❰➬➪
Þ
➵✱➾➳➼✒➲✂➵✮➾➳➼r➱➸❒❡➘❐➴➳➼r➯❡Ù ☞ ✔✢✛Ü➚➄➪
✓
Ý✕✔
✛
✓
ß✖✔✖✙
✓
à✖✔
ì
✓
➫
✔
ÿ
✓
×
✔➺ê
⑩
✘ þ Ð➀➾➳➼è➘➄➼✒➲❲✃❡➵✮➾➳➪☛➯❡Ù✘➵✮➾➳➼è➪✱➚❐➷➳➼✒➪☛➯❡Ù✖➵✱➾➳➼❻❒❡Ö✒➴❲➵✱➼↕❒➸➲➳✃❄➘➄➼❴➷
➵✱❰✱➚➄❒❡➲➳✃❄➘❐➼ Ý❈ß➀à
❒❡❰✱➼ ☞✩✍ ➨
Þ
☞✥❒❡➲➳➷✂☞ ✔ ➨❄➩✤✣✦✥ ➚❐➪
➻❱➼✒❰➬➻➽➼❴➲➳➷➳➚❐Ö✒➴➳➘➄❒❡❰⑧➵✮➯★✧✪✩❞➩❘Ð➀➾➳➼✒➲✫✩✞✥ ✍✬✥✭✧✥➼✒Ø➔➴➝❒❡➘❐➪
A
D
C
B
x−1
x+1
x
<
>
✓
Ý✕✔ ✘
✟
✓
ß✖✔ Ï
✓
à✖✔ ✘
☛
✓
➫ ✔ ñ
✓
× ✔
✒
☞
⑩
✙
þ
Ð➀➾➳➼✓❒❡❰✱➼✒❒☛➯❡Ù⑧❒✗❰➬➼✒Ö❴➵✮❒❡➲➳✃❄➘❐➼❞➚➄➪✎➲➔➴➳Ô✓➼❴❰✱➚❐Ö✙❒❡➘❐➘❐➮✡➼❴Ø➔➴➝❒❡➘✟➵✮➯✂➵ïÚ➺➚➄Ö❴➼✓➚Õ➵✮➪✎➻➽➼❴❰✱➚❐Ô✓➼❬➵✮➼✒❰➙❒❡➲❲➷↕➶❱➯❡➵✮➾ç➵✮➾➳➼
➘❐➼✒➲➳✃➸➵✮➾✘❒❡➲➳➷✎➵✮➾➳➼❯➶➳❰✱➼✒❒❡➷❲➵✱➾◗❒❡❰➬➼❯➻❱➯❄➪➬➚❐➵✮➚Õ➱❄➼❘➚➄➲●➵✱➼✒✃❄➼❴❰✱➪✒➩ óë➯➆Ú Ô✓❒❡➲●➮r➪✱➴❲Ö✪➾◗❰✱➼❴Ö❴➵✪❒➸➲➳✃❄➘➄➼❴➪ ❒➸❰✱➼❘➻➽➯❡➪✱➪✱➚❐➶➳➘➄➼✯✮
✓
Ý✕✔
✓
ß✖✔
✓
à✖✔
✓
✔
✓
⑩➈↔ þ Ð➀➾❲➼ ➷➳➚❮❒❡✃❡❰✮❒❡Ô ➪➬➾➳➯➆Ú➺➪ç➵✱➾➳❰✱➼❴➼ ➪✱➼❴Ô✓➚❐Ö✒➚➄❰❪ð Ö❴➘➄➼❴➪❦Ú➺➾➳➚❐Ö✪➾➭❒➸❰✱➼☛Ô◗➴❲➵✮➴➳❒❡➘➄➘Õ➮❻➵✮❒❡➲➳✃❄➼❴➲➔➵Ü❒❡➲➳➷ ➾➳❒➆➱❡➼♣➵✮➾➳➼❴➚➄❰➙➷➳➚❮❒➸Ô✓➼❬➵✮➼✒❰➬➪✖➯❄➲❻➵✮➾➳➼✓➘➄➚➄➲❲➼ ÝÓà ➩ Ð➀➾❲➼☎➘➄➚❐➲➳➼✂➫ ß ➚➄➪❦➻➽➼❴❰✱➻❱➼✒➲➳➷➳➚❐Ö✒➴➳➘➄❒❡❰♥➵✮➯ ÝÓà Ú➺➚Õ➵✮➾✂➫ Ý ❒❡➲➳➷✂➫ à ➚➄➲●➵✮➼❴❰✱➪➬➼✒Ö❴➵✱➚➄➲➳✃◗➵✱➾➳➼❈➵ïÚÛ➯ ➪➬ÔÜ❒➸➘➄➘➄➼❴❰❀Ö✒➚❐❰✱Ö❴➘➄➼✒➪P❒■➵✼é✡❒❡➲➳➷✁Ñ❰➬➼✒➪✱➻❱➼✒Ö❬➵✮➚Õ➱❄➼✒➘Õ➮❄➩ ✡ Ù➌➫ ß ✏ ➨ ☎◗➵✮➾❲➼✒➲✂➵✮➾➳➼✎➘➄➼❴➲➳✃❡➵✱➾☛➯➸Ù✟é✂á➚❐➪
A
B
C
D
P
Q
✓ Ý✕✔ ã ✒ ➨ ☎ ✓ ß✖✔ ÿ ✒ ã ✓ à✖✔ ñ ✒ ÿ ✓ ➫ ✔ ì ✒ Ï ✓ × ✔☎✄ ➯❄➲➳➼r➯❡Ù❜➵✮➾➳➼❴➪✱➼⑩ ✄ þ Ý ➲→➚❐➪✱➯❄➪➬Ö✒➼❴➘➄➼✒➪✎➵✮❰➬➚❮❒❡➲❲✃❄➘➄➼♥➾➝❒➸➪✘➪➬➚➄➷➳➼❴➪✘➯❡Ù⑧➘➄➼✒➲❲✃❡➵✮➾↕Ï Þ Ï✗❒❡➲➳➷✠☞P➩✝✆➝➯❄❰rÚ➺➾➳➚➄Ö✪➾
➱➸❒❡➘❐➴➳➼r➯❡Ù ☞✡➚❐➪⑧➵✮➾➳➼➙❒❡❰➬➼✙❒❞➯❡Ù❜➵✱➾➳➼r➵✮❰➬➚❮❒❡➲➳✃❡➘➄➼❈❒❞Ô✓❒ ✔➈➚➄Ô◗➴➳Ô ✮
2
2
x
✓ Ý✕✔ ➨ ✓ ß✖✔ ✒ Ï ✓ à✖✔ Ï ✓ ➫ ✔ Ï ✒ Ï ✓ × ✔ ã ⑩➈❷ þ Ð➀➾➳➼♣➪✱➚✔→➼❴➷➳✃❄➼❴➪♥➯❡Ù➀➵✮➼❬➵✮❰✮❒➸➾➳➼✒➷➳❰➬➯❄➲ Ý❈ß⑧à ➫ Ô✓➼✒❒❡➪✱➴➳❰➬➼✂ì Þ ➨➆ã Þ ➨ ✙❲Þ Ï❡ì Þ ã❄ÿ