LC-Jewels and Stones

class Solution(object):
def numJewelsInStones(self, J, S):
"""
:type J: str
:type S: str
:rtype: int
"""
count = 0
for i in range(len(J)):
if J[i] in S:
count +=S.count(J[i])
return count

Sol = Solution()
print Sol.numJewelsInStones('aA','aAAbbbffff')