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21 lines
467 B
C++

#define _CRT_SECURE_NO_WARNINGS
#define _SILENCE_CXX17_C_HEADER_DEPRECATION_WARNING
#include <bits/stdc++.h>
using namespace std;
int main()
{
int sum = 0, rest = 0;
for (int i = 1; i <= 12; i++)
{
rest += 300;
int n;
cin >> n;
rest -= n;
if (rest < 0) return printf("%d", -i), 0;
sum += rest / 100 * 100;
rest %= 100;
}
printf("%d", rest + sum * 6 / 5);
return 0;
}