<LeetCode><Easy> 67 Add Binary

Given two binary strings, return their sum (also a binary string).

For example,

a = 

"11"

b = 

"1"

Return 

"100"

.

#Python2   48ms

class Solution(object):
def addBinary(self, a, b):
"""
:type a: str
:type b: str
:rtype: str
"""
return bin(int(a,2)+int(b,2))[2:]