What is the error: Please help

Question

This is my 1st kotlin code so their is a bit error it this code please help me to rectify it
ONLY FOR THOSE WHO KNOW KOTLIN

https://code.sololearn.com/cPbGo2PDrsMW/?ref=app

Answer 1

1)see comments of this code , Scanner is not working on SL
2)where is main method
3)no need of continue;
4)in last else part , s2+=ch;
https://code.sololearn.com/cJOo9D5i8tq4/?ref=app

Answer 2

Thanks bro I got that