/*
---------------------------------------------------
	for•¶ start^endŽw’č For_03_start_end
---------------------------------------------------
*/

import java.io.*;
import java.text.*;

class For_03_start_end {
	public static void main(String[] args) throws Exception {
		
		int i;
		int start,end,step;
		
		BufferedReader inp=new BufferedReader
			(new InputStreamReader(System.in));
		String keybd;
		
		System.out.print("STRAT-->");
		keybd=inp.readLine();
		start=Integer.parseInt(keybd);
		
		System.out.print("END  -->");
		keybd=inp.readLine();
		end=Integer.parseInt(keybd);
		
		System.out.print("STEP -->");
		keybd=inp.readLine();
		step=Integer.parseInt(keybd);
		
		System.out.print("\n");
		
		for ( i=start ; i<=end ; i=i+step ) {
			System.out.print(i+"@");
		}

		System.out.print("\n");
		
	}
}