def up(x):
	return x+10*(x%10!=0)-x%10



A=int(input())
B=int(input())
C=int(input())
D=int(input())
E=int(input())

l=[A,B,C,D,E]

m=np.array([i%10+10*(i%10==0) for i in l])
a=np.argmin(m)
out=0
for i in range(5):
	if(i==a):
		out+=l[i]
	else:
		out+=up(l[i])	

print(out)