import java.util.Scanner; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt(); String s = in.nextLine(); String t = in.nextLine(); int count = 0; char[] s_to_c = s.toCharArray(); char[] t_to_c = t.toCharArray(); for(int i=0; i