nested arrays. Pointers gone wrong

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C++

ok so I have this C++ code:

#include "StdAfx.h"
#include <stdio.h>
#include <cstdlib>

using namespace std;



int main()
{
	 system("PAUSE");
typedef int ty[5];
ty sec[6];
for (int i=0;i<5;i++){
	for(int j=0;j<6;j++){
		sec[i][j]=i*6 +j;
		printf("%d \t",i*6 +j);
	
		printf("%d \n",sec[i][j]);
	}}
int*  p=sec[0];
for(int i=0;i<5;i++){for(int j=0;j<6;j++){printf("%d   %d    %d\n",sec[i][j],i,j);printf("%d\n",*p);
	p++; }}
	

 system("PAUSE");
}

(#include "StdAfx.h" is Visual Studio precompiler header)
what it does is preety obvious !
the problem is that the values printed are not what I expected them to be !
at the first loop everything is ok and sec[i][j] == i*5 +j
at the second one however things get nasty
when using the array ,the last element of every ty is 'missed'
(it prints 0 1 2 3 4 6 6 instead of 0 1 2 3 4 5 6)
when using pointers it gets even worse
can someone explain what I'm doing wrong ?
thanks a lot !!!