549 B | 549 chars
import sys
from math import sqrt, pi, sin, factorial
inp = lambda : sys.stdin.readline()[:-1].strip()
mii = lambda x = " " : [*map(int,inp().split(x))]
mfi = lambda x = " " : [*map(float,inp().split(x))]
ii = lambda : int(inp())
fi = lambda : float(inp())
p = print
def f(x, a, b, c, d, e):
return (a // 3) * (x ** 3) + (b - d) // 2 * x * x + (c - e) * x
def solve():
x1, x2 = mii()
a, b, c, d, e = mii()
print(f(x2, a, b, c, d, e) - f(x1, a, b, c, d, e))
if __name__ == "__main__":
tc = 1
for t in range(tc):
solve()