#include<stdio.h>
int main()
{
	int i,n,sum=0,mom=0;
	int a[12];
	for (i = 0; i < 12; i++) {
		scanf("%d", &a[i]);
	}
	for(i=0;i<12;i++){
		n = a[i];
		sum += 300 - n;
		if (sum >= 100) {
			sum -= 100;
			mom += 100;
		}
		else if (sum >= 200) {
			sum -= 200;
			mom += 200;
		}
		else if (sum >= 300) {
			sum -= 300;
			mom += 300;
		}
		else if (sum < 0) {
			printf("-%d", i+1);
			return 0;
		}
		else 
			continue;
	}
	int jin = 0;
	jin = mom + mom * 0.2;
	printf("%d", jin);
	return 0;
}