Sum And Product

num = int(input())
is_break = False

for i in range(1, 9):
    for j in range(9, i, -1):
        for k in range(9):
            for l in range(9, k, -1):
                if (i + j + k + l) == i * j * k * l and num % 10 == 5:
                    print(f"{i}{j}{k}{l}")
                    is_break = True
                    exit()

                if i * j * k * l // (i + j + k + l) == 3 and num % 3 == 0:
                    print(f"{l}{k}{j}{i}")
                    is_break = True
                    exit()
if not is_break:
    print("Nothing found")


РЕШЕНИЕ С ТЕРНАРЕН ОПЕРАТОР:

num = int(input())
is_break = False

for i in range(1, 9):
    for j in range(9, i, -1):
        for k in range(9):
            for l in range(9, k, -1):
                if (i + j + k + l) == i * j * k * l and num % 10 == 5 \
                        or i * j * k * l // (i + j + k + l) == 3 and num % 3 == 0:
                    print(f"{i}{j}{k}{l}" if (i + j + k + l) == i * j * k * l else f"{l}{k}{j}{i}")
                    is_break = True
                    exit()

if not is_break:
    print("Nothing found")