import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner stdin = new Scanner(System.in);
		int x[] = new int[5];
		int y =1000009;
		int sum = 0;
		for (int n = 0; n < 5; n++) {
			x[n] = stdin.nextInt();
			if (x[n] % 10 != 0) {
				sum = sum + (x[n] / 10 + 1) * 10;
			} else {
				sum = sum + x[n];
			}
			if ((x[n] % 10) <= (y % 10)&&x[n]%10!=0) {
				y = x[n];
			}
		}
			sum = sum - (y / 10 + 1) * 10 + y;
			if(x[0]%10==0&&x[1]%10==0&&x[2]%10==0&&x[3]%10==0&&x[4]%10==0) {
				sum = sum +1;
			}

		
		System.out.println(sum);

	}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz