enter

Import java.io. *;

public class Ioly {public String Lstr () throws Exception {InputStreamReader isr = new InputStreamReader (System.in); BufferedReader br = new BufferedReader (isr); String s = br.readLine (); return s;

} Public int Lint () throws Exception {InputStreamReader isr = new InputStreamReader (System.in); BufferedReader br = new BufferedReader (isr); String s = br.readLine (); int ly = Integer.parseInt (s); return ly ;} public double Ldouble () throws Exception {InputStreamReader isr = new InputStreamReader (System.in); BufferedReader br = new BufferedReader (isr); String s = br.readLine (); double ly = Double.parseDouble (s); return ly;} public float Lfloat () throws Exception {InputStreamReader isr = new InputStreamReader (System.in); BufferedReader br = new BufferedReader (isr); String s = br.readLine (); float ly = Float.parseFloat (s); Return Ly;

}