1058. A+B in Hogwarts (20)

If you are a fan of Harry Potter, you would know the world of magic has its own currency system -- as Hagrid explained it to Harry, "Seventeen silver Sickles to a Galleon and twenty-nine Knuts to a Sickle, it's easy enough." Your job is to write a program to
compute A+B where A and B are given in the standard form of "Galleon.Sickle.Knut" (Galleon is an integer in [0, 107], Sickle is an integer in [0, 17), and Knut is an integer in [0, 29)).

Input Specification:

Each input file contains one test case which occupies a line with A and B in the standard form, separated by one space. 

Output Specification:

For each test case you should output the sum of A and B in one line, with the same format as the input.
Sample Input:

3.2.1 10.16.27

Sample Output:

14.1.28

#include <iostream>
#include <vector>
using namespace std;
int main()
{
int a1, b1, c1, a2, b2, c2;
cin >> a1; getchar();
cin >> b1; getchar();
cin >> c1;
cin >> a2; getchar();
cin >> b2; getchar();
cin >> c2;
long long  a, b, c;
c = c1 + c2;
b = b1 + b2 + c / 29;
c %= 29;
a = a1 + a2 + b / 17;
b %= 17;

printf("%d.%d.%d\n", a, b, c);
return 0;
}