import java.util.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int num = 5;
		long minute[] = new long[num];
		long rest[] = new long[num];
		long time = 0;
		for(int i = 0; i < num; i ++) {
			minute[i] = sc.nextLong();
			long need = (long)Math.ceil(minute[i] / 10.0) * 10;
			rest[i] = need - minute[i];
			time += need;
		}
		Arrays.sort(rest);
		time -= rest[num - 1];
		System.out.println(time);
	}
}
/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