import java.util.Scanner;
public class Main{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner stdIn = new Scanner(System.in);
        
        for(int i = 1;i <= 10000;i++){
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        }
    
}
} import java.util.Scanner; Scanner java.util public class Main{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner stdIn = new Scanner(System.in);
        
        for(int i = 1;i <= 10000;i++){
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        }
    
}
} Main /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner stdIn = new Scanner(System.in);
        
        for(int i = 1;i <= 10000;i++){
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        }
    
} main {
        // TODO code application logic here
        Scanner stdIn = new Scanner(System.in);
        
        for(int i = 1;i <= 10000;i++){
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        }
    
} Scanner stdIn = new Scanner(System.in); stdIn new Scanner(System.in) for(int i = 1;i <= 10000;i++){
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        } int i = 1; int i = 1; i 1 i <= 10000 i 10000 i++ i++ i {
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        } {
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        } int x = stdIn.nextInt(); x stdIn.nextInt() stdIn.nextInt stdIn System.out.println("Case "+i+": "+x) System.out.println System.out System System.out "Case "+i+": "+x ": " "Case "+i+": "+x "Case " i ": " x String[] args args public class Main{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner stdIn = new Scanner(System.in);
        
        for(int i = 1;i <= 10000;i++){
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        }
    
}
} public class Main{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner stdIn = new Scanner(System.in);
        
        for(int i = 1;i <= 10000;i++){
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        }
    
}
} Main
import java.util.Scanner;
public class Main{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        Scanner stdIn = new Scanner(System.in);
        
        for(int i = 1;i <= 10000;i++){
            int x = stdIn.nextInt();
            System.out.println("Case "+i+": "+x);
        }
    
}
}