import java.util.*;

/**
 *  @author Torbjörn Nilsson
*/
public class ExpandTab {
/**
 * This is the size of the tab (standard).
*/
  public static final int TABSIZE = 8;

/**
 * Return a string consisting of the given nr of spaces.
*/
  public static String space(int i) {
    String res="";
    for(int j=0;j<i;j++)
      res +=" ";
    return res;
  }

/**
 *  Expand all "\t" chars in the given string to spaces.
*/
  public static String expand(String s) {
    int pos = 0;
    String res="", tmp;
    StringTokenizer st = new StringTokenizer(s,"\n\t", true);

    while(st.hasMoreTokens()) {
      tmp = st.nextToken();
      if (tmp.equals("\t")) {
	tmp = space(TABSIZE-(pos%TABSIZE));
      }
      else if (tmp.equals("\n")) {
	pos= -1;
      }
      
  //    System.out.println(tmp+" "+tmp.length()+" "+pos);

      res += tmp;
      pos += tmp.length();

    }
    
    return res;
  }

  public static void main(String[] a) {

    String s= "Gas\t40\t50\nEggs\t30\t55";
    String t = ExpandTab.expand(s);

    System.out.println(s);
    System.out.println(t);

  }

}