Finding Borders

A border of a string is a prefix that is also a suffix of the string but not the whole string. For example, the borders of abcababcab are ab and abcab. Your task is to find all border lengths of a given string. Input The only input line has a string of length n consisting of characters a–z. Output Print all border lengths of the string in increasing order. Constraints - 1 \le n \le 10^6 Ex