```
include [HTML_REMOVED]
using namespace std;
int main()
{
char a;
cin>>a;
double b[13][13],c;
int t=0;
int k=9,m=1;
for(int i=0;i<12;i)
for(int j=0;j<12;j)cin>>b[i][j];
for(int i=0;i<=4;i)
{
for(int j=m;j<=i+1+k;j)
{
c+=b[i][j],t;
}k-=2,m;
}
if(a==’S’)printf(“%.1lf”,c);
else printf(“%.1lf”,c/t);
return 0;
}```