# Question

A strobogrammatic number is a number that looks the same when rotated 180 degrees (looked at upside down).

Write a function to determine if a number is strobogrammatic. The number is represented as a string.

Example 1:

```
Input: "69"
Output: true
```

Example 2:

```
Input: "88"
Output: true
```

Example 3:

```
Input: "962"
Output: false
```

# Solution

```
class Solution(object):
def isStrobogrammatic(self, num):
"""
:type num: str
:rtype: bool
"""
if len(num) == 0:
return False
for i in range((len(num) + 1) // 2):
c1 = num[i]
c2 = num[len(num) - 1 - i]
if c1 == '8' == c2 == '8':
pass
elif c1 == '0' == c2:
pass
elif c1 == '1' == c2:
pass
elif (c1 == '6' and c2 == '9') or (c1 == '9' and c2 == '6'):
pass
else:
return False
return True
```