user: ### NOW ANSWER:
Question: How long does  the 2579km route take?
Columns: ['Dibrugarh', 'Kanyakumari', 'Vivek Express /15905/15906', 'Indian Railways', '4286km', '55', 'Weekly', '82.30 hrs(~3.5 days)']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Jammutawi', 'Kanyakumari', 'Himsagar Express /6318', 'Indian Railways', '3715km', 71.0, 'Weekly', '69 hrs 40 min(~3 days)']
SQL:

assistant: SELECT "82.30 hrs(~3.5 days)" FROM "Table" WHERE "4286km" = '2579km';