#include <stdio.h>
 
int main(void) {
int i;
int xor = 0;
int b;
// $GPGLL,,,,,,V,N*64
 
char Received[18]= {'$','G','P','G','L','L',',',',',',',',',',',',','V',',','N','*','6','4'};
int loop;
 
// display array
//for(loop = 0; loop < 18; loop++)
//   printf("%c ", Received[loop]);
 
for(int i = 1; i<=14; i++)
	xor ^= Received[i];
	printf("%#02x  ", xor,"%d ", xor);
	printf("%d ", xor);
	b = Received[16];
	printf("%c ", b);
return 0;
}
 

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