Update cs1.md (#6688)
Update cs1.md (#6688)

* Update cs1.md

added this example: int age = 16; line 346

* Update cs1.md

backticks added
codecombat/codecombat,javatlacati/codecombat,javatlacati/codecombat,javatlacati/codecombat,codecombat/codecombat,codecombat/codecombat,codecombat/codecombat,javatlacati/codecombat,javatlacati/codecombat,codecombat/codecombat