import java.util.*;

/**
 * Main
 */
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		// 整数の入力
		int ans = 0;
		int min = 10;
		int trg = 0;

		for (int i = 0; i < 5; i++) {
			int X = sc.nextInt();
			if ((X - 1) % 10 < min) {
				trg = X;
				min = (X - 1) % 10;
			}
			if (X % 10 == 0) {
				ans += X;
			} else {
				ans += (X / 10) * 10 + 10;
			}
		}

		if (trg % 10 == 0) {
			ans -= trg;
		} else {
			ans -= (trg / 10) * 10 + 10;
		}
		ans += trg;
		sc.close();

		System.out.println(ans);
	}
};

/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