#include<bits/stdc++.h>
using namespace std;
int month_predict[12];//计划 
int month_remainder[12];//剩余 
const int month_add=300;
int save,ans;//save是储存的 
int main(){	
	for(int i=0;i<12;i++)
	{
		cin>>month_predict[i];
	} 	
	for(int i=0;i<12;i++)
	{
		month_remainder[i]=month_remainder[i-1]+300-month_predict[i];
		if(month_remainder[i]>=100)
		{
			month_remainder[i]-=100;
			save+=100;
			//cout<<"month_remainder[i]:"<<month_remainder[i]<<endl;
			//cout<<"save:"<<save<<endl;
		}
		else if(month_remainder[i]<0)
		{
			cout<<"-"<<i+1;
			return 0;
		}
	}
	cout<<month_remainder[11]+save*1.2+100;
	return 0;
}