// 201,101,P
// 201,102,P
// 201,103,P
// 202,101,P
// 202,104,P
import java.io.*;
import java.lang.*;
import java.lang.String;
import java.util.regex.*;
class editgrade {
  public static void main(String args[]) throws IOException {
    BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));
    String bufsubj,bufid,bufgrade;
    System.out.print("Wait subject : ");
    bufsubj = stdin.readLine();
    System.out.print("Wait id : ");
    bufid = stdin.readLine();
    System.out.print("Wait grade : ");
    bufgrade = stdin.readLine();	
    String b;
    String ar[] = new String[100];
    FileReader fin = new FileReader("grade.txt");
    BufferedReader bin = new BufferedReader (fin);
    int i = 0;
    while ((b =  bin.readLine()) != null) {      
      ar[i] = b; 
      i = i + 1;
    }    
    fin.close();
    //
    int tot = i;
    String fld[];
    FileOutputStream fout = new FileOutputStream("grade.txt");
    BufferedOutputStream bout = new BufferedOutputStream(fout);
    PrintStream pout = new PrintStream(bout);
    i = 0;
    while (i < tot) {      
      fld = ar[i].split(",");	
      // System.out.println(fld[0] + fld[1] + bufsubj + bufid);       
      if (bufsubj.equals(fld[0]) && bufid.equals(fld[1])) {
        pout.println(bufsubj + "," + bufid + "," + bufgrade);
        // System.out.println("Change");       
      } else {
        pout.println(ar[i]);
      }
      i = i + 1;
    }
    pout.close();
  }
}