import sys

def main():
    input = sys.stdin.readline
    A = [int(input()) for _ in range(5)]

    ans = 0
    B = []
    for a in A:
        if a % 10 == 0:
            ans += a
        else:
            B.append(a)

    B = sorted(B, key=lambda x: -(x%10))
    n = len(B)
    for i in range(n-1):
        ans += (B[i] // 10 + 1) * 10

    ans += B[n-1]

    return ans


if __name__ == '__main__':
    print(main())
