List of A-Grade highways in Sri Lanka
Class AA Roads
Table:
Highway Number

Route

Length (km)

A0

Kollupitiya-Sri Jayawardenapura

7.12

A1

Colombo-Kandy

115.85

A2

Colombo-Galle- Hambantota-Wellawaya

317.78

A3

Peliyagoda-Puttalam via Ja-Ela, Negombo and Chilaw

126

A4

Colombo-Ratnapura-Wellawaya-Batticaloa

430

A5

Peradeniya-Badulla-Chenkalady

276

A6

Ambepussa-Trincomalee

198.71

A7

Avissawella-Nuwara Eliya

119

A8

Panadura-Ratnapura

68

A9

Kandy-Jaffna

321

A10

Katugastota-Puttalam

124.58

A11

Maradankadawala-Trikandimadu

129.36

A12

Puttalam-Trincomalee

176.99

A13

Galkulama-Anuradhapura

17

A14

Medawachchiya-Talaimannar

114

A15

Batticaloa-Trincomalee

131

A16

Beragala-Hali Ela

40

A17

Galle-Madampe

144

A18

Nonagama-Pelmadulla

88

A19

Polgahawela-Kegalle

12

A20

Anuradhapura-Rambewa

14

A21

Kegalle-Karawanella

42

A22

Passara-Monaragala

34

A23

Wellawaya-Kumbalwela

31

A24

Matara-Akuressa

20

A25

Siyambalanduwa-Ampara

57

A26

Kandy-Padiyathalawa

105

A27

Ampara-Maha Oya

58

A28

Anuradhapura-Padeniya

84

A29

Vavuniya-Horowpothana

46

A30

Vavuniya-Parayanalankulam

36

A31

Ampara-Karaitivu

24

A32

Mannar-Navatkuly

98

A33

Ja Ela-Yakkala

17

A34

Mankulam-Mullaitivu

49

A35

Paranthan-Mullaitivu

52

Total Distance

3723.39 km

Given the tabular data covering 'List of A-Grade highways in Sri Lanka' (see 'Class AA Roads'), produce a single-sentence summary focused on the highlighted cells and return it as JSON: {"answer": "YOUR ANSWER"}.