import java.util.*; import java.io.*; public class giochuan{ static class MH{ String code, name; public MH(String code, String name){ this.code=code; this.name=name; } } static class GV{ String code, name; Double sum; public GV(String code, String name){ this.code=code; this.name=name; this.sum=0.0; } @Override public String toString(){ return name + " " + String.format("%.2f", sum); } } static class bill{ MH mh; GV gv; Double sum; public bill(GV gv, MH mh, double sum){ this.gv = gv; this.mh = mh; this.sum = sum; } } public static void main(String[] args) throws IOException { Scanner sc1 = new Scanner(new File("MONHOC.in")); Scanner sc2 = new Scanner(new File("GIANGVIEN.in")); Scanner sc3 = new Scanner(new File("GIOCHUAN.in")); HashMap hm1 = new HashMap<>(); HashMap hm2 = new HashMap<>(); ArrayList a = new ArrayList<>(); int n = sc1.nextInt(); sc1.nextLine(); for(int i=0;i System.out.println(e)); } }