Python181103-081.py

#!/usr/bin/env python
# coding: utf-8

# **题目**：809*??=800*??+9*?? 其中??代表的两位数, 809*??为四位数，8*??的结果为两位数，9*??的结果为3位数。求??代表的两位数，及809*??后的结果。

# In[4]:


#!/usr/bin/python
# -*- coding: UTF-8 -*-
 
a = 809
for i in range(10,100):
    b = i * a
    if b >= 1000 and b <= 10000 and 8 * i < 100 and 9 * i >= 100:
        print (b,' = 800 * ', i, ' + 9 * ', i)


# In[ ]: