ts = []
ts_mod = []
for i in range(5):
    ts.append(int(input()))
    ts_mod.append(ts[i] % 10)


def find_index(ts, ts_mod):
    result = 10
    for i in range(len(ts_mod)):
        if ts_mod[i] == 0:
            pass
        else:
            if result > ts_mod[i]:
                result = ts_mod[i]
    return ts_mod.index(result)

min_ind = find_index(ts, ts_mod)

last_ts = ts[min_ind]

del ts_mod[min_ind]
del ts[min_ind]


result = 0
for i in range(len(ts_mod)):
    if ts[i] % 10 == 0:
        result += ts[i]
    else:
        result += ts[i] + ( 10 - ts[i] % 10 )
        
result += last_ts
print(result)