#include <stdio.h>

typedef struct{
	int x;
	int y;
	int z;
}Coordinate;

int main(void) {
	
	Coordinate me = {0};
	
	Coordinate *next_me = &me;
	
	next_me -> x += 1;
	next_me -> y += 1;
	next_me -> z += 1;
	
	printf("x=%d\n",me.x);
	printf("y=%d\n",me.y);
	printf("z=%d\n",me.z);
	
	return 0;
}