/in/Main.java:4: error: cannot find symbol
		Scanner s=new Scanner(system.ln);
		^
  symbol:   class Scanner
  location: class A
/in/Main.java:4: error: cannot find symbol
		Scanner s=new Scanner(system.ln);
		              ^
  symbol:   class Scanner
  location: class A
/in/Main.java:4: error: cannot find symbol
		Scanner s=new Scanner(system.ln);
		                      ^
  symbol:   variable system
  location: class A
/in/Main.java:6: error: bad operand types for binary operator '*'
		System.out.println(a*a*a);
		                    ^
  first type:  String
  second type: String
4 errors