YouTipPython Exercise Example81
# Python2.x Python Exercise Example 81
[ Python 100 Examples](#)
**Question:** 809*??=800*??+9*?? where ?? represents a two-digit number, 809*?? is a four-digit number, 8*?? results in a two-digit number, and 9*?? results in a three-digit number. Find the two-digit number represented by ??, and the result of 809*??.
**Program Analysis:** None.
Program source code:
## Example (Python 2.0+)
#!/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: print b,' = 800 * ', i, '