func_code_string: #include <bits/stdc++.h>   using namespace std;   int _;   long long a1, a2, b1, b2, c1, c2;   int main() {     ios::sync_with_stdio(false);     cin.tie(0);     cin >> a1 >> a2 >> b1 >> b2 >> c1 >> c2;     if ((c2 - b2) * (c1 - a1) == (c2 - a2) * (c1 - b1)) {       cout <<  No ;     } else if ((a1 - b1) * (a1 - b1) + (a2 - b2) * (a2 - b2) ==                (b1 - c1) * (b1 - c1) + (b2 - c2) * (b2 - c2)) {       cout <<  Yes ;     } else       cout <<  No ;   }   