You are given a tree T with n vertices (numbered 1 through n) and a letter in each vertex. The tree is rooted at vertex 1. Let's look at the subtree Tv of some vertex v. It is possible to read a string along each simple path starting at v and ending at some vertex in Tv (possibly v itself). Let's denote the number of distinct strings which can be read this way as . Also, there's a number cv assigned to each vertex v. We are interested in vertices with the maximum value of . You should compute two statistics: the maximum value of and the number of vertices v with the maximum . The first line of the input contains one integer n (1 ≤ n ≤ 300 000) -- the number of vertices of the tree. The second line contains n space-separated integers ci (0 ≤ ci ≤ 109). The third line contains a string s consisting of n lowercase English letters -- the i-th character of this string is the letter in vertex i. The following n - 1 lines describe the tree T. Each of them contains two space-separated integers u and v (1 ≤ u, v ≤ n) indicating an edge between vertices u and v. It's guaranteed that the input will describe a tree. Print two lines. On the first line, print over all 1 ≤ i ≤ n. On the second line, print the number of vertices v for which . In the first sample, the tree looks like this: The sets of strings that can be read from individual vertices are: Finally, the values of are: In the second sample, the values of are (5, 4, 2, 1, 1, 1). The distinct strings read in T2 are ; note that can be read down to vertices 3 or 4.