/*This program is written by Sourav Nandi.
  Roll no: 1234
*/ 
#include <stdio.h>


int main() {
  printf("Hello world");
  printf("Another line."); /* ei line-ta parer line-e jachchhe na kena? */
  /*printf("A third line.");*/

  /* er pare ekta Goodbye likhte habe.*/
  return 0;
}