1058 A+B in Hogwarts

#include<iostream>
using namespace std;

int main()
{
    long long a,b,c;
    long long x1,x2,x3;
    char d;
    cin>>a>>d>>b>>d>>c;
    x1=a*17*29+b*29+c;
    cin>>a>>d>>b>>d>>c;
    x2=a*17*29+b*29+c;
    x3=x1+x2;
    c=x3%29;
    x3/=29;
    b=x3%17;
    x3/=17;
    a=x3;
    cout<<a<<'.'<<b<<'.'<<c;
    
}
``