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

int main()
{ 
   float pi=3.1415;
 	
   printf("|% 20.7f|\n", pi);   // the space leaves a space for the sign
   printf("|% -20.7f|\n", -pi); // the space leaves a space for the sign
   printf("|% -20.7f|\n", pi);  // the - is for "left justify"

   printf("\n");
   printf("|%-20.7f|\n", pi);  
   printf("|%-20.7f|\n", -pi);  // no space was left for the sign so the formattinf is off
   
   system("pause");
   return 0;
}