#include<stdio.h>
 #include<stdlib.h>
 #include<string.h>

int main() {
   int i;
   char *buf= malloc(1);
   *buf='\0';
   char loc[120];

   for(i=0;i<1920;i++) {
      sprintf(loc,"{Fill_next_token = my_next_token%d; Fill_next_token_id = my_next_token_id = my_next_token_id%d}",i,i);
      int size = strlen(buf)+strlen(loc)+1;
      printf("----%d\n",size);
      char *tmp = realloc(buf,size);
      if(!tmp) exit(1);
      buf = tmp;
      strcat(buf, loc);
   }
}