A1058 A+B in Hogwarts (20 分)

18分代码，不知道哪里扣了2分

#include <iostream>
using namespace std;
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char** argv) {
    
    
	int a, b, c;
	int x, y, z;
	scanf("%d.%d.%d %d.%d.%d", &a, &b, &c, &x, &y, &z);
	
	long long int count = 0;
	count = a * 17 * 29 + b * 29 + c + x * 17 * 29 + y * 29 + z;
	
	a = count / (17 * 29);
	b = (count % (17 * 29)) / 29;
	c = count - (a * 17 * 29 + b * 29);
	
	printf("%d.%d.%d", a, b, c);
	
	return 0;
}