#include <P18F4550.h>	
#define inbit PORTBbits.RB0
#define outbit PORTCbits.RC7 
void main(void)
  {
    TRISBbits.TRISB0 = 1;		
    TRISCbits.TRISC7 = 0;		
    while(1)
      {
        outbit = ~inbit; 		
      }
  }