For.java

import java.io.*;
import java.util.*;

public class For {
    public int fact3(int n){
	int end;
	for (end = 1;n >=1; n=n-1){
	    end = end *n;
	}
	return end;
    }

    public String reverse(String s){
	String result = "";
	int i;
	int j;
	for (i=s.length(), j=s.length()-1;i>0;i=i-1,j=j-1){
	    result=result + s.substring(j,i);
	}
	return result;
    }
    public String table(int n, int m){
	String result=" ";
	int i;
	int j;
	for (i=n-1;i>=0;i=i-1){
	    result=result + (n-i) + " ";
	}
	result = result +"\n";
	for (m=m,j=1;m>0;m=m-1, j=j+1){
	    result=result + j + "";
	    for (i=n-1;i>=0;i= i-1){
		result = result + ((n-i)*j) + " ";
	    }
	    result = result + "\n";
	}
	return result;
    }
}