B'Polycarp invented a new way to encode strings. Let 's assume that we have string T, consisting of lowercase English letters. Let 's choose several pairs of letters of the English alphabet in such a way that each letter occurs in at most one pair. Then let 's replace each letter in T with its pair letter if there is a pair letter for it. For example, if you chose pairs (l, r), (p, q) and (a, o), then word "parallelogram" according to the given encoding principle transforms to word "qolorreraglom". Polycarpus already has two strings, S and T. He suspects that string T was obtained after applying the given encoding method from some substring of string S. Find all positions mi in S (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89mi xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89|S| xe2 x80 x89- xe2 x80 x89|T| xe2 x80 x89+ xe2 x80 x891), such that T can be obtained fro substring SmiSmi xe2 x80 x89+ xe2 x80 x891... Smi xe2 x80 x89+ xe2 x80 x89|T| xe2 x80 x89- xe2 x80 x891 by applying the described encoding operation by using some set of pairs of English alphabet letters The first line of the input contains two integers, |S| and |T| (1 xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89|T| xe2 x80 x89 xe2 x89 xa4 xe2 x80 x89|S| xe2 x80 x89 xe2 x89 xa4 xe2 x80 x892 xc2 xb7105) -- the lengths of string S and string T, respectively. The second and third line of the input contain strings S and T, respectively. Both strings consist only of lowercase English letters. Print number k -- the number of suitable positions in string S. In the next line print k integers m1, xe2 x80 x89m2, xe2 x80 x89..., xe2 x80 x89mk -- the numbers of the suitable positions in the increasing order.'...