#include <stdio.h>

int main()
{
	int Galleon, Sickle, Knut, P, A, change;

	scanf("%d.%d.%d", &Galleon, &Sickle, &Knut);
	P = (Galleon * 17 + Sickle) * 29 + Knut;
	scanf("%d.%d.%d", &Galleon, &Sickle, &Knut);
	A = (Galleon * 17 + Sickle) * 29 + Knut;

	change = A - P;
	if (change < 0) {
		change = -change;
		putchar('-');
	}
	printf("%d.%d.%d", change / (17 * 29), change / 29 % 17, change % 29);

	return 0;
}