暴力枚举
#include <iostream>
using namespace std;
char c;
double m[12][12];
int main() {
cin >> c;
for (int i = 0; i < 12; i++) {
for (int j = 0; j < 12; j++) {
cin >> m[i][j];
}
}
double sum = m[0][1] + m[0][2] + m[0][3] + m[0][4] + m[0][5] + m[0][6] + m[0][7] + m[0][8] + m[0][9] + m[0][10] + m[1][2] + m[1][3] + m[1][4] + m[1][5] + m[1][6] + m[1][7] + m[1][8] + m[1][9] + m[2][3] + m[2][4] + m[2][5] + m[2][6] + m[2][7] + m[2][8] + m[3][4] + m[3][5] + m[3][6] + m[3][7] + m[4][5] + m[4][6];
cout << (c == 'S' ? sum : sum / 30.0);
return 0;
}