public class Try4
{
    public void run(byte k)      //求k的階乘
    {
        byte  y=1,i;
        for (i=1;i<=k;i++)
            y = (byte)(y * i);
        System.out.println(k+"!="+y);
    }
    public static void main (String args[])
    {
        Try4 a = new Try4();
        for (byte i=1;i<10;i++)
            a.run(i);
    }
}