import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
sys.setrecursionlimit(10 ** 7)

l = int(readline())
m = int(readline())
n = int(readline())
m += n // 25
n %= 25
l += m // 4
m %= 4
print(l % 10 + m + n)