#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>

void test1(unsigned char **test)
{
	int i;
	for (i=0;i<4;i++){
		printf("%c",test[i][i]);
		}	
}
int main(){
	unsigned char **testa;
	int i;
	testa=(unsigned char **)malloc(4*sizeof(unsigned char *));
	for (i=0;i<4;i++)
		testa[i]=(unsigned char *)malloc(4*sizeof(unsigned char));
	for (i=0;i<4;i++)
		testa[i][i] = i;
	test1(testa);
	return 0;
}