#include <stdio.h>
char b[24][80]; 
char **buff =&b[0][0];

main()
{

int i;
for(i=0;i<24;i++)
	putin(i);
for(i=0;i<24;i++)
	printf("%s\n",buff[i]);
}

putin(i)
int i;
{
char *pbuff = buff[i];

	*buff[i] =040;

}