package yukicoder; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.*; public class P672 { public static void main(String[] args) throws IOException { MyScanner sc = new MyScanner(System.in); String s = sc.next(); int a = 0; int b = 0; for(int i=0; i