#include <iostream>
#include <algorithm>
//myArrayNested3.cpp
// inner one nested array within
//one outer array
using namespace std;
//
typedef int threedim[3][3];
void showArray(threedim); 
int main(){
  const int sec=3, row = 3; 
  int n1[sec][row] = { {1,2,3 }, {4,5,6},
  					 {7,8,9}};
  showArray(n1); 
  return 0;   
}

 
void showArray(threedim tdim)
{
char str1[4]={'A','B','C','D'}; 
double sum;
  for(int i=0; i< 3; i++)
  {
  	cout<<"\n section :" << str1[i] <<endl;  
	for(int j=0; j<3; j++)
	{
			
		cout<<" "<< tdim[i][j];
	   sum +=  tdim[i][j];
		
	}
	//cout<<"  current sum " << sum; 
	cout<<"  cummulative  sum " << sum;
	cout<<"\n" ; 
}
}