typedef struct{
	int a;
}layer1;

typedef struct{
	layer1 l1;
	float b,c;
}layer2;

typedef struct{
	layer2 l2;
	layer1 l1;
	int d,e;
}layer3;

void showCake(layer3 cake){
	printf(,cake.d);
	printf(,cake.e);
	printf(,cake.l1.a);
	printf(,cake.l2.b);
	printf(,cake.l2.l1.a);
}

int main()
{
	layer3 cake1,cake2;

	cake1.d = 1;
	cake1.e = 2;
	cake1.l1.a = 3;
	cake1.l2.b = 4;
	cake1.l2.l1.a = 5;

	printf();
	showCake(cake1);

	cake2 = cake1;

	cake2.l2.b += cake2.l2.l1.a;

	printf();
	showCake(cake2);

	return 0;
}