import math

lis = []
for _ in range(5):
    lis.append(int(input()))
    
def roundup(x):
    return int(math.ceil(x/10)) * 10
    

    
minind = 9
tmp2 = 0
for i in range(5):
    tmp = str(lis[i])
    if tmp[-1] != "0":
        minind = min(minind, int(tmp[-1]))
        if minind == int(tmp[-1]):
            tmp2 = lis[i]
lis.remove(tmp2)

for j in range(4):
    lis[j] = roundup(lis[j])
        
print(sum(lis)+tmp2)