public class Main{
  public static void main(String[] args) throws Exception{
    char[] kari=new char[10];
    for(int i=0;i<10;i++) kari[i]=(char)System.in.read();
    kari[3]='8';
    for(int i=0;i<10;i++) System.out.print(kari[i]);
    System.out.print("\n");
  }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz