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18 lines
363 B
C++
18 lines
363 B
C++
#include <bits/stdc++.h>
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using namespace std;
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int main() {
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char op;
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cin >> op;
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double x, sum = 0;
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for (int i = 0; i < 12; i++) {
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for (int j = 0; j < 12; j++) {
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cin >> x;
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if (i > j && i + j > 11) sum += x;
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}
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}
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cout << fixed << setprecision(1) << sum / (op == 'S' ? 1 : 30) << endl;
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return 0;
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}
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