#include <stdio.h>   // 799720
#include <conio.h>

main(){
   int x = 0;
   if(x>10){
      if(x<20){
        printf(" It is between 10 and 20 \n");
      }
      else{
        printf(" It is bigger than 19 \n");
      }
   }
   else if(x<10){
      if( x > 1){
        printf(" It is between 1 and 10 ");
      }
      else{
        printf(" Negative or 0 ");
      }
   }
   while(!kbhit()){}
}