x = 10
y = 25
z = 15

w = 40
variantsQuantity = 0


def calcRes(x, y, z, variantsQuantity):
    res = 0
    if w%x == 0:
        for el in range(int(w/x)):
            res+=x
            if w%res == 0 and res<=w:
                variantsQuantity += 1
            elif res>w:
                res = 0

            if w%y == 0:
                for el in range(int(w/y)):
                    res+=y
                    if w%res == 0 and res<=w:
                        variantsQuantity += 1
                    elif res>w:
                        res = 0

            if w%z == 0:
                for el in range(int(w/z)):
                    res+=z
                    if w%res == 0 and res<=w:
                        variantsQuantity += 1
                    elif res>w:
                        res = 0
    return variantsQuantity


variantsQuantity = calcRes(x, y, z, variantsQuantity)
print variantsQuantity