include [HTML_REMOVED]
int main(){
char a;
float b[12][12];
float c=0.0;
scanf(“%c”,&a);
for(int i=0;i<12;i){
for(int j=0;j<12;j){
scanf(“%f”,&b[i][j]);
}
}
for(int i=7;i<12;i){
for(int j=12-i;j<=i-1;j){
c=c+b[i][j];
}
}
if(a==’S’){
printf(“%.1f”,c);
}
else{
printf(“%.1f”,c/30);
}
return 0;
}