Bài 7

n = int(input("Nhap n: "))

ket_qua = 1
for i in range(1, n + 1):
    ket_qua = ket_qua * i

# In ra cach tinh
buoc = " x ".join(str(i) for i in range(1, n + 1))
print(f"{n}! = {buoc} = {ket_qua}")