class Program {
	public static void main
(String[] args
) { 		System.
out.
println(calculateAverage
("10", 
"20")); 	}
    	return (Float.
parseFloat(a
) + Float.
parseFloat(b
)) / 2; 	}
}
 
//https://pt.stackoverflow.com/q/355849/101
				Y2xhc3MgUHJvZ3JhbSB7CglwdWJsaWMgc3RhdGljIHZvaWQgbWFpbihTdHJpbmdbXSBhcmdzKSB7CgkJU3lzdGVtLm91dC5wcmludGxuKGNhbGN1bGF0ZUF2ZXJhZ2UoIjEwIiwgIjIwIikpOwoJfQoJcHJpdmF0ZSBzdGF0aWMgZmxvYXQgY2FsY3VsYXRlQXZlcmFnZShTdHJpbmcgYSwgU3RyaW5nIGIpIHsKICAgIAlyZXR1cm4gKEZsb2F0LnBhcnNlRmxvYXQoYSkgKyBGbG9hdC5wYXJzZUZsb2F0KGIpKSAvIDI7Cgl9Cn0KCi8vaHR0cHM6Ly9wdC5zdGFja292ZXJmbG93LmNvbS9xLzM1NTg0OS8xMDE=