#include <iostream> #include <iomanip> using namespace std; int main() { double sum = 0; double monthSalary; for (int i = 0; i < 12; i++) { cin >> monthSalary; sum += monthSalary; } double averageSalary = sum / 12; cout << "¥" << fixed << setprecision(2) << averageSalary << endl; return 0; }