Read from a PORTx and based on condition send to their PORTx(s)

in this program we are going to use if-else condition to specify where data read from a port should be write to. we are going to set PORTA as input and read value from that port. if the value is greater than 100 send the data to PORTB else send the data to PORTC

#include <avr/io.h>
 
int main(void) {
  DDRA = 0x00;
  DDRB = DDRC = 0xFF;
  unsigned char x;
  while (1) {
    x = PINA;
    if (x > 100)
      PORTB = x;
    else
      PORTC = x;
 
  }
  return 0;
}