#include <stdio.h>

int main()
{
   if ( 0 )
      printf("0 = true\n");
   else
      printf("0 = false\n");

   if ( 1 )
      printf("1 = true\n");
   else
      printf("1 = false\n");

   if ( 4 )
      printf("4 = true\n");
   else
      printf("4 = false\n");

}