/in/Main.java:7: error: ')' expected
				System.out.println(3x+1);
				                    ^
/in/Main.java:7: error: not a statement
				System.out.println(3x+1);
				                     ^
/in/Main.java:7: error: ';' expected
				System.out.println(3x+1);
				                       ^
/in/Main.java:13: error: class, interface, or enum expected
}
^
4 errors