What will this small program output? class Main { private static int foo(int a) { return bar(a) + 4; } private static int bar(int b) { return baz(b) - 2; } private static int baz(int b) { return b * 3; } public static void main(String[] args) { int a = 4; int b = 2; int x = foo(a) + b; System.out.println(x); } 3