Genesis 5:31

And all the days of Lamech were seven hundred seventy and seven years: and he died.

All the days of Lamech were seven hundred seventy-seven years, then he died.

And all the days of Lamech were seven hundred seventy and seven years: and he died.

And all the days of Lamech are seven hundred and seventy and seven years, and he dieth.

So Lamech lived a total of 777 years, and then he died.