import java.util.Scanner;

class no637{
	public static void main(String[] args) {
		Scanner stdIn=new Scanner(System.in);
		int a,i,s=0;
		for(i=0;i<5;i++) {
			a=stdIn.nextInt();
			if(a%3==0&&a%5==0) s+=8;
			else if(a%3==0||a%5==0) s+=4;
			else {
				while(a>0) {
					a/=10;
					s++;
				}
			}
		}
		System.out.print(s);
	}
}