java11

##캠핑
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Main {
   	    public static void main(String[] args) throws IOException {	     	
    	 BufferedReader  br = new BufferedReader(new InputStreamReader(System.in));
    	 int i=1;
    		
    		while(true) { 
    		 String line=br.readLine();
    		 String [] str=line.split(" ");
    		 int L=Integer.parseInt(str[0]);                
    		 if(L==0) break;                
    		 int P=Integer.parseInt(str[1]);
    		 int V=Integer.parseInt(str[2]);
    		 
    		 int days=0;    		
    		if(V%P>L)
    		   days=L+V/P*L;	
    		else 
    			days=V/P*L+V%P;
    		 System.out.println("Case "+ i++ +": "+days); //bufferedwriter을 사용하면 1000단위로 콤마가 찍힘! 따라서 콤마를 없애려면 System.out.println 사용
    		} 		 
    		 br.close();
    	    	
      }
}