YouTipPython Exercise Example5
# Python2.x Python Exercise Instance 5
[ Python 100 Examples](#)
**Question:** Input three integers x, y, z, please output these three numbers from smallest to largest.
**Program Analysis:** We try to put the smallest number into x. First, compare x with y. If x > y, swap the values of x and y. Then compare x with z. If x > z, swap the values of x and z. This ensures x is the smallest.
Program source code:
## Instance(Python 2.0+)
```python
#!/usr/bin/python
# -*- coding: UTF-8 -*-
l = []
for i in range(3):
x = int(raw_input('integer:n'))
l.append(x)
l.sort()
print l
## Instance(Python 3.0+)
```python
#!/usr/bin/python3
l = []
for i in range(3):
x = int(input('integer:n'))
l.append(x)
l.sort()
print(l)
The output result of the above instance