Add punctuation: 3 years ago 4037 xHamster gangbang Brazil group
A: 3 years ago 40:37 xHamster gangbang, Brazil, group

Add punctuation: In 1640 at the age of 13 he took up the study of mathematics
A: In 1640, at the age of 13, he took up the study of mathematics.

Add punctuation: accumulate through space heat amid 15 chiefly 30 degrees chiefly 59 advantage 86 mainly F
A:
accumulate through space heat amid 15 chiefly 30 degrees chiefly (59 advantage 86 mainly F).