python

8.27 Programming Assignment 3 Question 3 Sri has a group of vintage string lights with some of the lights being defective. A defective light is shown by 0 and a normal (non-defective) light is shown by 1 in the input. For example, the input 0110' represents a string with 4 lights in which the first and the last light are defective. Sri is interested in finding the longest number of non-defective lights in a row. In the example above, the longest number of non- defective lights is 2 represented by "11'. The first line of your input will contain the number of vintage lights followed by a string representation of every light. The output should be a single integer denoting the longest chain of non-defective lights. The chain can continue to the next group of lights, such as in the second example below where the longest number of non-defective lights is 5 with 4 non-defective lights from one string and 1 non-defective light from the second string Examples Input 0110 Output Input 1111 1010110 11001 Output