#include <iostream> #include <iomanip> #include <cmath> using namespace std; int main() { int budget, cash=0, saved=0, temp; for (int i=1; i<=12; i++){ cin >> budget; cash += 300; if (cash < budget){ cout << -i << endl; return 0; } temp = (cash - budget) / 100 * 100; cash -= temp+budget; saved += temp; } cout << cash+(int)(saved*1.2) << endl; return 0; }