#include <stdio.h>
#include <algorithm>

int main() {
	int a, total = 0;
	for (int i = 0; i < 5; i++) {
		scanf("%d", &a);
		if (a % 3 == 0 || a % 5 == 0) {
			if (a % 3 == 0)
				total += 4;
			if (a % 5 == 0)
				total += 4;
		} else {
			while (a != 0)
				total++, a /= 10;
		}
	}
	printf("%d\n", total);
}