#include #include #include #include #include #include #include #include #include #include #include #include #define vll vector #define vvvl vector #define vvl vector> #define VV(a, b, c, d) vector>(a, vector(b, c)) #define VVV(a, b, c, d) vector(a, vvl(b, vll (c, d))); #define re(c, b) for(ll c=0;c> a >> b >> c; std::cout << 1 + abs(a)/c + (abs(a)%c?1:0) + abs(b)/c + (abs(b)%c?1:0) << '\n'; }