gonen

import java.util.*;
public class Targil9 {

  static Scanner reader= new Scanner(System. in);
  public static void main(String[] args) {
    System.out.println("enetr a day number");
    int d = reader.nextInt();
    System.out.println("enetr a month number");
    int m = reader.nextInt();
    System.out.println("enetr a year");
    int y = reader.nextInt();
    int maxDay = 0;
    switch (m)
    {
      case 2:
        maxDay = 28;
        break;
      case 9:
      case 11:
      case 4:
      case 6:
        maxDay = 30;
        break;
      case 10:
      case 12:
      case 1:
      case 3:
      case 5:
      case 7:
      case 8:
        maxDay = 31;
        break;
    }
    if (d == 28){
      if (d + 1 == 29) {
        d = 0;
          System.out.println(y+ "/" + (m +1) + "/" +d);}
      System.out.println(y+ "/" + m + "/" +(d + 1));}
     if (maxDay == 30){
       if(maxDay+1 == 31){
        d=0;
        System.out.println(y+ "/" + (m +1) + "/" +d);}
     System.out.println(y+ "/" + m + "/" +(d + 1));}
      if (maxDay==31){
        if (maxDay+1 == 32){
           d=0;
           System.out.println(y+ "/" + (m +1) + "/" +d);}
      System.out.println(y+ "/" + m + "/" +(d + 1));}

  }



}