#define n 8
void main()
{int i,j,sum1=0,sum2=0;
pirntf("please input :\n");
for(i=0;i<n;i++)
for(j=0;j<n;j++)
{ scanf("%d",&a[i][j]); }
for(i=0;i<n;i++)
for(j=0;j<n;j++)
{
if(i==j) sum1+=a[i][j];/*主對角線和為sum1,次對角線之和為sum2*/
if(i+j==n-1) sum2+=a[i][j];
}
printf("sum1=%d\nsum2=%d\n",sum1,sum2);
}