Why if I put "cin" twice, only one works??

Question

WHY??
https://code.sololearn.com/cNK259t6V6Ec/?ref=app

Answer 1

Both work.

On Sololearn you have to input both values up front.

https://code.sololearn.com/WhiNb9BkJUVC/?ref=app

Answer 2

OMG GRACIAS BRO!