#include <stdio.h>
#define size 10
int main(void)
{
int t,i, n=8, (*num)[size][size], a[size][size];
num=&a;
 
printf("%d\n", sizeof(num));
for(t=0; t<8; ++t)
for (i=0; i<8; ++i)
*num[t][i] = (t*4)+i+1;
for (t=0; t<8; ++t)
{
for (i=0; i<8; ++i)
printf("%d  ",*num[t][i]);
printf ("\n");
}
n = 8;
for (i = 0; i < n - 1; ++i)
for (t = 0; t < n - 1; ++t)
*num[i][t] -= *num[n - 1][i];
for (i = 0; i < n - 1; ++i)
*num[n - 1][i] -= *num[n - 1][n - 1];
for (t=0; t<8; ++t)
{
for (i=0; i<8; ++i)
printf("%d  ",*num[t][i]);
printf ("\n");
}
return 0;
}

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