import java.util.*;
public class Rectangle
{
    public static void main(String args[])
    {
        int tangleA[][]=new int[5][];
        int sumA=0;
        for(int i=0;i<5;i++)
        {
            tangleA[i]=new int[5-i];        //定义每一唯的长度.
            for(int j=0;j<5-i;j++)
            {
                tangleA[i][j] = (int)((Math.random()*100) + 10);
                System.out.print(tangleA[i][j]+"\t");
                sumA=sumA+tangleA[i][j];
            }
            //System.out.println();
            System.out.println("sumA:"+sumA);
        }
    }
}